diff options
Diffstat (limited to 'crypto/evp/e_aes.c')
| -rw-r--r-- | crypto/evp/e_aes.c | 478 |
1 files changed, 287 insertions, 191 deletions
diff --git a/crypto/evp/e_aes.c b/crypto/evp/e_aes.c index b067dcfdff..daa84d7855 100644 --- a/crypto/evp/e_aes.c +++ b/crypto/evp/e_aes.c @@ -56,7 +56,7 @@ # include <string.h> # include <assert.h> # include <openssl/aes.h> -# include "evp_locl.h" +# include "internal/evp_int.h" # include "modes_lcl.h" # include <openssl/rand.h> @@ -292,17 +292,19 @@ static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { int ret, mode; - EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data; + EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx); - mode = ctx->cipher->flags & EVP_CIPH_MODE; + mode = EVP_CIPHER_CTX_mode(ctx); if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE) && !enc) { - ret = aesni_set_decrypt_key(key, ctx->key_len * 8, ctx->cipher_data); + ret = aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &dat->ks.ks); dat->block = (block128_f) aesni_decrypt; dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ? (cbc128_f) aesni_cbc_encrypt : NULL; } else { - ret = aesni_set_encrypt_key(key, ctx->key_len * 8, ctx->cipher_data); + ret = aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &dat->ks.ks); dat->block = (block128_f) aesni_encrypt; if (mode == EVP_CIPH_CBC_MODE) dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt; @@ -323,7 +325,9 @@ static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t len) { - aesni_cbc_encrypt(in, out, len, ctx->cipher_data, ctx->iv, ctx->encrypt); + aesni_cbc_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks, + EVP_CIPHER_CTX_iv_noconst(ctx), + EVP_CIPHER_CTX_encrypting(ctx)); return 1; } @@ -331,12 +335,13 @@ static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t len) { - size_t bl = ctx->cipher->block_size; + size_t bl = EVP_CIPHER_CTX_block_size(ctx); if (len < bl) return 1; - aesni_ecb_encrypt(in, out, len, ctx->cipher_data, ctx->encrypt); + aesni_ecb_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks, + EVP_CIPHER_CTX_encrypting(ctx)); return 1; } @@ -364,11 +369,12 @@ static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { - EVP_AES_GCM_CTX *gctx = ctx->cipher_data; + EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx); if (!iv && !key) return 1; if (key) { - aesni_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks); + aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &gctx->ks.ks); CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aesni_encrypt); gctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks; /* @@ -400,24 +406,27 @@ static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { - EVP_AES_XTS_CTX *xctx = ctx->cipher_data; + EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx); if (!iv && !key) return 1; if (key) { /* key_len is two AES keys */ if (enc) { - aesni_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks); + aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4, + &xctx->ks1.ks); xctx->xts.block1 = (block128_f) aesni_encrypt; xctx->stream = aesni_xts_encrypt; } else { - aesni_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks); + aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4, + &xctx->ks1.ks); xctx->xts.block1 = (block128_f) aesni_decrypt; xctx->stream = aesni_xts_decrypt; } - aesni_set_encrypt_key(key + ctx->key_len / 2, - ctx->key_len * 4, &xctx->ks2.ks); + aesni_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2, + EVP_CIPHER_CTX_key_length(ctx) * 4, + &xctx->ks2.ks); xctx->xts.block2 = (block128_f) aesni_encrypt; xctx->xts.key1 = &xctx->ks1; @@ -425,7 +434,7 @@ static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, if (iv) { xctx->xts.key2 = &xctx->ks2; - memcpy(ctx->iv, iv, 16); + memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16); } return 1; @@ -438,11 +447,12 @@ static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { - EVP_AES_CCM_CTX *cctx = ctx->cipher_data; + EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx); if (!iv && !key) return 1; if (key) { - aesni_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks); + aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &cctx->ks.ks); CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L, &cctx->ks, (block128_f) aesni_encrypt); cctx->str = enc ? (ccm128_f) aesni_ccm64_encrypt_blocks : @@ -450,7 +460,7 @@ static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, cctx->key_set = 1; } if (iv) { - memcpy(ctx->iv, iv, 15 - cctx->L); + memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L); cctx->iv_set = 1; } return 1; @@ -477,7 +487,7 @@ void aesni_ocb_decrypt(const unsigned char *in, unsigned char *out, static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { - EVP_AES_OCB_CTX *octx = ctx->cipher_data; + EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx); if (!iv && !key) return 1; if (key) { @@ -487,8 +497,10 @@ static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, * needs both. We could possibly optimise to remove setting the * decrypt for an encryption operation. */ - aesni_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks); - aesni_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks); + aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &octx->ksenc.ks); + aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &octx->ksdec.ks); if (!CRYPTO_ocb128_init(&octx->ocb, &octx->ksenc.ks, &octx->ksdec.ks, (block128_f) aesni_encrypt, @@ -639,14 +651,14 @@ static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { int ret, mode, bits; - EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data; + EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx); - mode = ctx->cipher->flags & EVP_CIPH_MODE; - bits = ctx->key_len * 8; + mode = EVP_CIPHER_CTX_mode(ctx); + bits = EVP_CIPHER_CTX_key_length(ctx) * 8; if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE) && !enc) { ret = 0; - aes_t4_set_decrypt_key(key, bits, ctx->cipher_data); + aes_t4_set_decrypt_key(key, bits, &dat->ks.ks); dat->block = (block128_f) aes_t4_decrypt; switch (bits) { case 128: @@ -666,7 +678,7 @@ static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, } } else { ret = 0; - aes_t4_set_encrypt_key(key, bits, ctx->cipher_data); + aes_t4_set_encrypt_key(key, bits, &dat->ks.ks); dat->block = (block128_f) aes_t4_encrypt; switch (bits) { case 128: @@ -737,11 +749,11 @@ static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { - EVP_AES_GCM_CTX *gctx = ctx->cipher_data; + EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx); if (!iv && !key) return 1; if (key) { - int bits = ctx->key_len * 8; + int bits = EVP_CIPHER_CTX_key_length(ctx) * 8; aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks); CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aes_t4_encrypt); @@ -787,12 +799,12 @@ static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { - EVP_AES_XTS_CTX *xctx = ctx->cipher_data; + EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx); if (!iv && !key) return 1; if (key) { - int bits = ctx->key_len * 4; + int bits = EVP_CIPHER_CTX_key_length(ctx) * 4; xctx->stream = NULL; /* key_len is two AES keys */ if (enc) { @@ -809,7 +821,8 @@ static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, return 0; } } else { - aes_t4_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks); + aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4, + &xctx->ks1.ks); xctx->xts.block1 = (block128_f) aes_t4_decrypt; switch (bits) { case 128: @@ -823,8 +836,9 @@ static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, } } - aes_t4_set_encrypt_key(key + ctx->key_len / 2, - ctx->key_len * 4, &xctx->ks2.ks); + aes_t4_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2, + EVP_CIPHER_CTX_key_length(ctx) * 4, + &xctx->ks2.ks); xctx->xts.block2 = (block128_f) aes_t4_encrypt; xctx->xts.key1 = &xctx->ks1; @@ -832,7 +846,7 @@ static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, if (iv) { xctx->xts.key2 = &xctx->ks2; - memcpy(ctx->iv, iv, 16); + memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16); } return 1; @@ -845,11 +859,11 @@ static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { - EVP_AES_CCM_CTX *cctx = ctx->cipher_data; + EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx); if (!iv && !key) return 1; if (key) { - int bits = ctx->key_len * 8; + int bits = EVP_CIPHER_CTX_key_length(ctx) * 8; aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks); CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L, &cctx->ks, (block128_f) aes_t4_encrypt); @@ -857,7 +871,7 @@ static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, cctx->key_set = 1; } if (iv) { - memcpy(ctx->iv, iv, 15 - cctx->L); + memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L); cctx->iv_set = 1; } return 1; @@ -871,7 +885,7 @@ static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { - EVP_AES_OCB_CTX *octx = ctx->cipher_data; + EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx); if (!iv && !key) return 1; if (key) { @@ -881,8 +895,10 @@ static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, * needs both. We could possibly optimise to remove setting the * decrypt for an encryption operation. */ - aes_t4_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks); - aes_t4_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks); + aes_t4_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &octx->ksenc.ks); + aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &octx->ksdec.ks); if (!CRYPTO_ocb128_init(&octx->ocb, &octx->ksenc.ks, &octx->ksdec.ks, (block128_f) aes_t4_encrypt, @@ -1041,14 +1057,16 @@ static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { int ret, mode; - EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data; + EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx); - mode = ctx->cipher->flags & EVP_CIPH_MODE; + mode = EVP_CIPHER_CTX_mode(ctx); if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE) && !enc) # ifdef HWAES_CAPABLE if (HWAES_CAPABLE) { - ret = HWAES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks); + ret = HWAES_set_decrypt_key(key, + EVP_CIPHER_CTX_key_length(ctx) * 8, + &dat->ks.ks); dat->block = (block128_f) HWAES_decrypt; dat->stream.cbc = NULL; # ifdef HWAES_cbc_encrypt @@ -1059,28 +1077,34 @@ static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, # endif # ifdef BSAES_CAPABLE if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) { - ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks); + ret = AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &dat->ks.ks); dat->block = (block128_f) AES_decrypt; dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt; } else # endif # ifdef VPAES_CAPABLE if (VPAES_CAPABLE) { - ret = vpaes_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks); + ret = vpaes_set_decrypt_key(key, + EVP_CIPHER_CTX_key_length(ctx) * 8, + &dat->ks.ks); dat->block = (block128_f) vpaes_decrypt; dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ? (cbc128_f) vpaes_cbc_encrypt : NULL; } else # endif { - ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks); + ret = AES_set_decrypt_key(key, + EVP_CIPHER_CTX_key_length(ctx) * 8, + &dat->ks.ks); dat->block = (block128_f) AES_decrypt; dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ? (cbc128_f) AES_cbc_encrypt : NULL; } else # ifdef HWAES_CAPABLE if (HWAES_CAPABLE) { - ret = HWAES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks); + ret = HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &dat->ks.ks); dat->block = (block128_f) HWAES_encrypt; dat->stream.cbc = NULL; # ifdef HWAES_cbc_encrypt @@ -1098,21 +1122,24 @@ static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, # endif # ifdef BSAES_CAPABLE if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) { - ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks); + ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &dat->ks.ks); dat->block = (block128_f) AES_encrypt; dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks; } else # endif # ifdef VPAES_CAPABLE if (VPAES_CAPABLE) { - ret = vpaes_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks); + ret = vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &dat->ks.ks); dat->block = (block128_f) vpaes_encrypt; dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ? (cbc128_f) vpaes_cbc_encrypt : NULL; } else # endif { - ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks); + ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &dat->ks.ks); dat->block = (block128_f) AES_encrypt; dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ? (cbc128_f) AES_cbc_encrypt : NULL; @@ -1133,14 +1160,18 @@ static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t len) { - EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data; + EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx); if (dat->stream.cbc) - (*dat->stream.cbc) (in, out, len, &dat->ks, ctx->iv, ctx->encrypt); - else if (ctx->encrypt) - CRYPTO_cbc128_encrypt(in, out, len, &dat->ks, ctx->iv, dat->block); + (*dat->stream.cbc) (in, out, len, &dat->ks, + EVP_CIPHER_CTX_iv_noconst(ctx), + EVP_CIPHER_CTX_encrypting(ctx)); + else if (EVP_CIPHER_CTX_encrypting(ctx)) + CRYPTO_cbc128_encrypt(in, out, len, &dat->ks, + EVP_CIPHER_CTX_iv_noconst(ctx), dat->block); else - CRYPTO_cbc128_decrypt(in, out, len, &dat->ks, ctx->iv, dat->block); + CRYPTO_cbc128_decrypt(in, out, len, &dat->ks, + EVP_CIPHER_CTX_iv_noconst(ctx), dat->block); return 1; } @@ -1148,9 +1179,9 @@ static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t len) { - size_t bl = ctx->cipher->block_size; + size_t bl = EVP_CIPHER_CTX_block_size(ctx); size_t i; - EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data; + EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx); if (len < bl) return 1; @@ -1164,52 +1195,70 @@ static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t len) { - EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data; + EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx); + int num = EVP_CIPHER_CTX_num(ctx); CRYPTO_ofb128_encrypt(in, out, len, &dat->ks, - ctx->iv, &ctx->num, dat->block); + EVP_CIPHER_CTX_iv_noconst(ctx), &num, dat->block); + EVP_CIPHER_CTX_set_num(ctx, num); return 1; } static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t len) { - EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data; + EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx); + int num = EVP_CIPHER_CTX_num(ctx); CRYPTO_cfb128_encrypt(in, out, len, &dat->ks, - ctx->iv, &ctx->num, ctx->encrypt, dat->block); + EVP_CIPHER_CTX_iv_noconst(ctx), &num, + EVP_CIPHER_CTX_encrypting(ctx), dat->block); + EVP_CIPHER_CTX_set_num(ctx, num); return 1; } static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t len) { - EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data; + EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx); + int num = EVP_CIPHER_CTX_num(ctx); CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks, - ctx->iv, &ctx->num, ctx->encrypt, dat->block); + EVP_CIPHER_CTX_iv_noconst(ctx), &num, + EVP_CIPHER_CTX_encrypting(ctx), dat->block); + EVP_CIPHER_CTX_set_num(ctx, num); return 1; } static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t len) { - EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data; + EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx); - if (ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) { + if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS)) { + int num = EVP_CIPHER_CTX_num(ctx); CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks, - ctx->iv, &ctx->num, ctx->encrypt, dat->block); + EVP_CIPHER_CTX_iv_noconst(ctx), &num, + EVP_CIPHER_CTX_encrypting(ctx), dat->block); + EVP_CIPHER_CTX_set_num(ctx, num); return 1; } while (len >= MAXBITCHUNK) { + int num = EVP_CIPHER_CTX_num(ctx); CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks, - ctx->iv, &ctx->num, ctx->encrypt, dat->block); + EVP_CIPHER_CTX_iv_noconst(ctx), &num, + EVP_CIPHER_CTX_encrypting(ctx), dat->block); + EVP_CIPHER_CTX_set_num(ctx, num); len -= MAXBITCHUNK; } - if (len) + if (len) { + int num = EVP_CIPHER_CTX_num(ctx); CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks, - ctx->iv, &ctx->num, ctx->encrypt, dat->block); + EVP_CIPHER_CTX_iv_noconst(ctx), &num, + EVP_CIPHER_CTX_encrypting(ctx), dat->block); + EVP_CIPHER_CTX_set_num(ctx, num); + } return 1; } @@ -1217,16 +1266,20 @@ static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t len) { - unsigned int num = ctx->num; - EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data; + unsigned int num = EVP_CIPHER_CTX_num(ctx); + EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx); if (dat->stream.ctr) CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks, - ctx->iv, ctx->buf, &num, dat->stream.ctr); + EVP_CIPHER_CTX_iv_noconst(ctx), + EVP_CIPHER_CTX_buf_noconst(ctx), + &num, dat->stream.ctr); else CRYPTO_ctr128_encrypt(in, out, len, &dat->ks, - ctx->iv, ctx->buf, &num, dat->block); - ctx->num = (size_t)num; + EVP_CIPHER_CTX_iv_noconst(ctx), + EVP_CIPHER_CTX_buf_noconst(ctx), &num, + dat->block); + EVP_CIPHER_CTX_set_num(ctx, num); return 1; } @@ -1236,9 +1289,9 @@ BLOCK_CIPHER_generic_pack(NID_aes, 128, 0) static int aes_gcm_cleanup(EVP_CIPHER_CTX *c) { - EVP_AES_GCM_CTX *gctx = c->cipher_data; + EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c); OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm)); - if (gctx->iv != c->iv) + if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c)) OPENSSL_free(gctx->iv); return 1; } @@ -1261,13 +1314,13 @@ static void ctr64_inc(unsigned char *counter) static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) { - EVP_AES_GCM_CTX *gctx = c->cipher_data; + EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c); switch (type) { case EVP_CTRL_INIT: gctx->key_set = 0; gctx->iv_set = 0; - gctx->ivlen = c->cipher->iv_len; - gctx->iv = c->iv; + gctx->ivlen = EVP_CIPHER_CTX_iv_length(c); + gctx->iv = EVP_CIPHER_CTX_iv_noconst(c); gctx->taglen = -1; gctx->iv_gen = 0; gctx->tls_aad_len = -1; @@ -1278,7 +1331,7 @@ static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) return 0; /* Allocate memory for IV if needed */ if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) { - if (gctx->iv != c->iv) + if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c)) OPENSSL_free(gctx->iv); gctx->iv = OPENSSL_malloc(arg); if (gctx->iv == NULL) @@ -1288,16 +1341,17 @@ static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) return 1; case EVP_CTRL_AEAD_SET_TAG: - if (arg <= 0 || arg > 16 || c->encrypt) + if (arg <= 0 || arg > 16 || EVP_CIPHER_CTX_encrypting(c)) return 0; - memcpy(c->buf, ptr, arg); + memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg); gctx->taglen = arg; return 1; case EVP_CTRL_AEAD_GET_TAG: - if (arg <= 0 || arg > 16 || !c->encrypt || gctx->taglen < 0) + if (arg <= 0 || arg > 16 || !EVP_CIPHER_CTX_encrypting(c) + || gctx->taglen < 0) return 0; - memcpy(ptr, c->buf, arg); + memcpy(ptr, EVP_CIPHER_CTX_buf_noconst(c), arg); return 1; case EVP_CTRL_GCM_SET_IV_FIXED: @@ -1315,7 +1369,8 @@ static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) return 0; if (arg) memcpy(gctx->iv, ptr, arg); - if (c->encrypt && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0) + if (EVP_CIPHER_CTX_encrypting(c) + && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0) return 0; gctx->iv_gen = 1; return 1; @@ -1336,7 +1391,8 @@ static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) return 1; case EVP_CTRL_GCM_SET_IV_INV: - if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt) + if (gctx->iv_gen == 0 || gctx->key_set == 0 + || EVP_CIPHER_CTX_encrypting(c)) return 0; memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg); CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen); @@ -1347,17 +1403,19 @@ static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) /* Save the AAD for later use */ if (arg != EVP_AEAD_TLS1_AAD_LEN) return 0; - memcpy(c->buf, ptr, arg); + memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg); gctx->tls_aad_len = arg; { - unsigned int len = c->buf[arg - 2] << 8 | c->buf[arg - 1]; + unsigned int len = + EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8 + | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1]; /* Correct length for explicit IV */ len -= EVP_GCM_TLS_EXPLICIT_IV_LEN; /* If decrypting correct for tag too */ - if (!c->encrypt) + if (!EVP_CIPHER_CTX_encrypting(c)) len -= EVP_GCM_TLS_TAG_LEN; - c->buf[arg - 2] = len >> 8; - c->buf[arg - 1] = len & 0xff; + EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8; + EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff; } /* Extra padding: tag appended to record */ return EVP_GCM_TLS_TAG_LEN; @@ -1365,14 +1423,14 @@ static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) case EVP_CTRL_COPY: { EVP_CIPHER_CTX *out = ptr; - EVP_AES_GCM_CTX *gctx_out = out->cipher_data; + EVP_AES_GCM_CTX *gctx_out = EVP_C_DATA(EVP_AES_GCM_CTX,out); if (gctx->gcm.key) { if (gctx->gcm.key != &gctx->ks) return 0; gctx_out->gcm.key = &gctx_out->ks; } - if (gctx->iv == c->iv) - gctx_out->iv = out->iv; + if (gctx->iv == EVP_CIPHER_CTX_iv_noconst(c)) + gctx_out->iv = EVP_CIPHER_CTX_iv_noconst(out); else { gctx_out->iv = OPENSSL_malloc(gctx->ivlen); if (gctx_out->iv == NULL) @@ -1391,14 +1449,15 @@ static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { - EVP_AES_GCM_CTX *gctx = ctx->cipher_data; + EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx); if (!iv && !key) return 1; if (key) { do { # ifdef HWAES_CAPABLE if (HWAES_CAPABLE) { - HWAES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks); + HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &gctx->ks.ks); CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) HWAES_encrypt); # ifdef HWAES_ctr32_encrypt_blocks @@ -1411,7 +1470,8 @@ static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, # endif # ifdef BSAES_CAPABLE if (BSAES_CAPABLE) { - AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks); + AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &gctx->ks.ks); CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) AES_encrypt); gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks; @@ -1420,7 +1480,8 @@ static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, # endif # ifdef VPAES_CAPABLE if (VPAES_CAPABLE) { - vpaes_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks); + vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &gctx->ks.ks); CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) vpaes_encrypt); gctx->ctr = NULL; @@ -1429,7 +1490,8 @@ static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, # endif (void)0; /* terminate potentially open 'else' */ - AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks); + AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &gctx->ks.ks); CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) AES_encrypt); # ifdef AES_CTR_ASM @@ -1471,7 +1533,7 @@ static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t len) { - EVP_AES_GCM_CTX *gctx = ctx->cipher_data; + EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx); int rv = -1; /* Encrypt/decrypt must be performed in place */ if (out != in @@ -1481,18 +1543,19 @@ static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, * Set IV from start of buffer or generate IV and write to start of * buffer. */ - if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ? + if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CIPHER_CTX_encrypting(ctx) ? EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV, EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0) goto err; /* Use saved AAD */ - if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len)) + if (CRYPTO_gcm128_aad(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx), + gctx->tls_aad_len)) goto err; /* Fix buffer and length to point to payload */ in += EVP_GCM_TLS_EXPLICIT_IV_LEN; out += EVP_GCM_TLS_EXPLICIT_IV_LEN; len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN; - if (ctx->encrypt) { + if (EVP_CIPHER_CTX_encrypting(ctx)) { /* Encrypt payload */ if (gctx->ctr) { size_t bulk = 0; @@ -1571,9 +1634,11 @@ static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, goto err; } /* Retrieve tag */ - CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, EVP_GCM_TLS_TAG_LEN); + CRYPTO_gcm128_tag(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx), + EVP_GCM_TLS_TAG_LEN); /* If tag mismatch wipe buffer */ - if (CRYPTO_memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) { + if (CRYPTO_memcmp(EVP_CIPHER_CTX_buf_noconst(ctx), in + len, + EVP_GCM_TLS_TAG_LEN)) { OPENSSL_cleanse(out, len); goto err; } @@ -1589,7 +1654,7 @@ static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t len) { - EVP_AES_GCM_CTX *gctx = ctx->cipher_data; + EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx); /* If not set up, return error */ if (!gctx->key_set) return -1; @@ -1603,7 +1668,7 @@ static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, if (out == NULL) { if (CRYPTO_gcm128_aad(&gctx->gcm, in, len)) return -1; - } else if (ctx->encrypt) { + } else if (EVP_CIPHER_CTX_encrypting(ctx)) { if (gctx->ctr) { size_t bulk = 0; # if defined(AES_GCM_ASM) @@ -1694,15 +1759,17 @@ static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, } return len; } else { - if (!ctx->encrypt) { + if (!EVP_CIPHER_CTX_encrypting(ctx)) { if (gctx->taglen < 0) return -1; - if (CRYPTO_gcm128_finish(&gctx->gcm, ctx->buf, gctx->taglen) != 0) + if (CRYPTO_gcm128_finish(&gctx->gcm, + EVP_CIPHER_CTX_buf_noconst(ctx), + gctx->taglen) != 0) return -1; gctx->iv_set = 0; return 0; } - CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16); + CRYPTO_gcm128_tag(&gctx->gcm, EVP_CIPHER_CTX_buf_noconst(ctx), 16); gctx->taglen = 16; /* Don't reuse the IV */ gctx->iv_set = 0; @@ -1725,10 +1792,10 @@ BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM, static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) { - EVP_AES_XTS_CTX *xctx = c->cipher_data; + EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,c); if (type == EVP_CTRL_COPY) { EVP_CIPHER_CTX *out = ptr; - EVP_AES_XTS_CTX *xctx_out = out->cipher_data; + EVP_AES_XTS_CTX *xctx_out = EVP_C_DATA(EVP_AES_XTS_CTX,out); if (xctx->xts.key1) { if (xctx->xts.key1 != &xctx->ks1) return 0; @@ -1751,7 +1818,7 @@ static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { - EVP_AES_XTS_CTX *xctx = ctx->cipher_data; + EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx); if (!iv && !key) return 1; @@ -1766,17 +1833,20 @@ static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, # ifdef HWAES_CAPABLE if (HWAES_CAPABLE) { if (enc) { - HWAES_set_encrypt_key(key, ctx->key_len * 4, + HWAES_set_encrypt_key(key, + EVP_CIPHER_CTX_key_length(ctx) * 4, &xctx->ks1.ks); xctx->xts.block1 = (block128_f) HWAES_encrypt; } else { - HWAES_set_decrypt_key(key, ctx->key_len * 4, + HWAES_set_decrypt_key(key, + EVP_CIPHER_CTX_key_length(ctx) * 4, &xctx->ks1.ks); xctx->xts.block1 = (block128_f) HWAES_decrypt; } - HWAES_set_encrypt_key(key + ctx->key_len / 2, - ctx->key_len * 4, &xctx->ks2.ks); + HWAES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2, + EVP_CIPHER_CTX_key_length(ctx) * 4, + &xctx->ks2.ks); xctx->xts.block2 = (block128_f) HWAES_encrypt; xctx->xts.key1 = &xctx->ks1; @@ -1791,17 +1861,20 @@ static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, # ifdef VPAES_CAPABLE if (VPAES_CAPABLE) { if (enc) { - vpaes_set_encrypt_key(key, ctx->key_len * 4, + vpaes_set_encrypt_key(key, + EVP_CIPHER_CTX_key_length(ctx) * 4, &xctx->ks1.ks); xctx->xts.block1 = (block128_f) vpaes_encrypt; } else { - vpaes_set_decrypt_key(key, ctx->key_len * 4, + vpaes_set_decrypt_key(key, + EVP_CIPHER_CTX_key_length(ctx) * 4, &xctx->ks1.ks); xctx->xts.block1 = (block128_f) vpaes_decrypt; } - vpaes_set_encrypt_key(key + ctx->key_len / 2, - ctx->key_len * 4, &xctx->ks2.ks); + vpaes_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2, + EVP_CIPHER_CTX_key_length(ctx) * 4, + &xctx->ks2.ks); xctx->xts.block2 = (block128_f) vpaes_encrypt; xctx->xts.key1 = &xctx->ks1; @@ -1811,15 +1884,18 @@ static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, (void)0; /* terminate potentially open 'else' */ if (enc) { - AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks); + AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4, + &xctx->ks1.ks); xctx->xts.block1 = (block128_f) AES_encrypt; } else { - AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks); + AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4, + &xctx->ks1.ks); xctx->xts.block1 = (block128_f) AES_decrypt; } - AES_set_encrypt_key(key + ctx->key_len / 2, - ctx->key_len * 4, &xctx->ks2.ks); + AES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2, + EVP_CIPHER_CTX_key_length(ctx) * 4, + &xctx->ks2.ks); xctx->xts.block2 = (block128_f) AES_encrypt; xctx->xts.key1 = &xctx->ks1; @@ -1827,7 +1903,7 @@ static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, if (iv) { xctx->xts.key2 = &xctx->ks2; - memcpy(ctx->iv, iv, 16); + memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16); } return 1; @@ -1836,16 +1912,18 @@ static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t len) { - EVP_AES_XTS_CTX *xctx = ctx->cipher_data; + EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx); if (!xctx->xts.key1 || !xctx->xts.key2) return 0; if (!out || !in || len < AES_BLOCK_SIZE) return 0; if (xctx->stream) (*xctx->stream) (in, out, len, - xctx->xts.key1, xctx->xts.key2, ctx->iv); - else if (CRYPTO_xts128_encrypt(&xctx->xts, ctx->iv, in, out, len, - ctx->encrypt)) + xctx->xts.key1, xctx->xts.key2, + EVP_CIPHER_CTX_iv_noconst(ctx)); + else if (CRYPTO_xts128_encrypt(&xctx->xts, EVP_CIPHER_CTX_iv_noconst(ctx), + in, out, len, + EVP_CIPHER_CTX_encrypting(ctx))) return 0; return 1; } @@ -1861,7 +1939,7 @@ BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS) static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) { - EVP_AES_CCM_CTX *cctx = c->cipher_data; + EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,c); switch (type) { case EVP_CTRL_INIT: cctx->key_set = 0; @@ -1877,17 +1955,19 @@ static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) /* Save the AAD for later use */ if (arg != EVP_AEAD_TLS1_AAD_LEN) return 0; - memcpy(c->buf, ptr, arg); + memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg); cctx->tls_aad_len = arg; { - uint16_t len = c->buf[arg - 2] << 8 | c->buf[arg - 1]; + uint16_t len = + EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8 + | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1]; /* Correct length for explicit IV */ len -= EVP_CCM_TLS_EXPLICIT_IV_LEN; /* If decrypting correct for tag too */ - if (!c->encrypt) + if (!EVP_CIPHER_CTX_encrypting(c)) len -= cctx->M; - c->buf[arg - 2] = len >> 8; - c->buf[arg - 1] = len & 0xff; + EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8; + EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff; } /* Extra padding: tag appended to record */ return cctx->M; @@ -1897,7 +1977,7 @@ static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) if (arg != EVP_CCM_TLS_FIXED_IV_LEN) return 0; /* Just copy to first part of IV */ - memcpy(c->iv, ptr, arg); + memcpy(EVP_CIPHER_CTX_iv_noconst(c), ptr, arg); return 1; case EVP_CTRL_AEAD_SET_IVLEN: @@ -1911,17 +1991,17 @@ static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) case EVP_CTRL_AEAD_SET_TAG: if ((arg & 1) || arg < 4 || arg > 16) return 0; - if (c->encrypt && ptr) + if (EVP_CIPHER_CTX_encrypting(c) && ptr) return 0; if (ptr) { cctx->tag_set = 1; - memcpy(c->buf, ptr, arg); + memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg); } cctx->M = arg; return 1; case EVP_CTRL_AEAD_GET_TAG: - if (!c->encrypt || !cctx->tag_set) + if (!EVP_CIPHER_CTX_encrypting(c) || !cctx->tag_set) return 0; if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg)) return 0; @@ -1933,7 +2013,7 @@ static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) case EVP_CTRL_COPY: { EVP_CIPHER_CTX *out = ptr; - EVP_AES_CCM_CTX *cctx_out = out->cipher_data; + EVP_AES_CCM_CTX *cctx_out = EVP_C_DATA(EVP_AES_CCM_CTX,out); if (cctx->ccm.key) { if (cctx->ccm.key != &cctx->ks) return 0; @@ -1951,14 +2031,15 @@ static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { - EVP_AES_CCM_CTX *cctx = ctx->cipher_data; + EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx); if (!iv && !key) return 1; if (key) do { # ifdef HWAES_CAPABLE if (HWAES_CAPABLE) { - HWAES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks); + HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &cctx->ks.ks); CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L, &cctx->ks, (block128_f) HWAES_encrypt); @@ -1969,7 +2050,8 @@ static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, # endif # ifdef VPAES_CAPABLE if (VPAES_CAPABLE) { - vpaes_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks); + vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &cctx->ks.ks); CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L, &cctx->ks, (block128_f) vpaes_encrypt); cctx->str = NULL; @@ -1977,14 +2059,15 @@ static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, break; } # endif - AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks); + AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &cctx->ks.ks); CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L, &cctx->ks, (block128_f) AES_encrypt); cctx->str = NULL; cctx->key_set = 1; } while (0); if (iv) { - memcpy(ctx->iv, iv, 15 - cctx->L); + memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L); cctx->iv_set = 1; } return 1; @@ -1993,26 +2076,29 @@ static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, static int aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t len) { - EVP_AES_CCM_CTX *cctx = ctx->cipher_data; + EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx); CCM128_CONTEXT *ccm = &cctx->ccm; /* Encrypt/decrypt must be performed in place */ if (out != in || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->M)) return -1; /* If encrypting set explicit IV from sequence number (start of AAD) */ - if (ctx->encrypt) - memcpy(out, ctx->buf, EVP_CCM_TLS_EXPLICIT_IV_LEN); + if (EVP_CIPHER_CTX_encrypting(ctx)) + memcpy(out, EVP_CIPHER_CTX_buf_noconst(ctx), + EVP_CCM_TLS_EXPLICIT_IV_LEN); /* Get rest of IV from explicit IV */ - memcpy(ctx->iv + EVP_CCM_TLS_FIXED_IV_LEN, in, EVP_CCM_TLS_EXPLICIT_IV_LEN); + memcpy(EVP_CIPHER_CTX_iv_noconst(ctx) + EVP_CCM_TLS_FIXED_IV_LEN, in, + EVP_CCM_TLS_EXPLICIT_IV_LEN); /* Correct length value */ len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M; - if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len)) + if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx), 15 - cctx->L, + len)) return -1; /* Use saved AAD */ - CRYPTO_ccm128_aad(ccm, ctx->buf, cctx->tls_aad_len); + CRYPTO_ccm128_aad(ccm, EVP_CIPHER_CTX_buf_noconst(ctx), cctx->tls_aad_len); /* Fix buffer to point to payload */ in += EVP_CCM_TLS_EXPLICIT_IV_LEN; out += EVP_CCM_TLS_EXPLICIT_IV_LEN; - if (ctx->encrypt) { + if (EVP_CIPHER_CTX_encrypting(ctx)) { if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len, cctx->str) : CRYPTO_ccm128_encrypt(ccm, in, out, len)) @@ -2038,7 +2124,7 @@ static int aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t len) { - EVP_AES_CCM_CTX *cctx = ctx->cipher_data; + EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx); CCM128_CONTEXT *ccm = &cctx->ccm; /* If not set up, return error */ if (!cctx->key_set) @@ -2050,11 +2136,12 @@ static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, if (!cctx->iv_set) return -1; - if (!ctx->encrypt && !cctx->tag_set) + if (!EVP_CIPHER_CTX_encrypting(ctx) && !cctx->tag_set) return -1; if (!out) { if (!in) { - if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len)) + if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx), + 15 - cctx->L, len)) return -1; cctx->len_set = 1; return len; @@ -2070,11 +2157,12 @@ static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, return 0; /* If not set length yet do it */ if (!cctx->len_set) { - if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len)) + if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx), + 15 - cctx->L, len)) return -1; cctx->len_set = 1; } - if (ctx->encrypt) { + if (EVP_CIPHER_CTX_encrypting(ctx)) { if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len, cctx->str) : CRYPTO_ccm128_encrypt(ccm, in, out, len)) @@ -2088,7 +2176,8 @@ static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, !CRYPTO_ccm128_decrypt(ccm, in, out, len)) { unsigned char tag[16]; if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) { - if (!CRYPTO_memcmp(tag, ctx->buf, cctx->M)) + if (!CRYPTO_memcmp(tag, EVP_CIPHER_CTX_buf_noconst(ctx), + cctx->M)) rv = len; } } @@ -2099,7 +2188,6 @@ static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, cctx->len_set = 0; return rv; } - } # define aes_ccm_cleanup NULL @@ -2123,20 +2211,22 @@ typedef struct { static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { - EVP_AES_WRAP_CTX *wctx = ctx->cipher_data; + EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx); if (!iv && !key) return 1; if (key) { - if (ctx->encrypt) - AES_set_encrypt_key(key, ctx->key_len * 8, &wctx->ks.ks); + if (EVP_CIPHER_CTX_encrypting(ctx)) + AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &wctx->ks.ks); else - AES_set_decrypt_key(key, ctx->key_len * 8, &wctx->ks.ks); + AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &wctx->ks.ks); if (!iv) wctx->iv = NULL; } if (iv) { - memcpy(ctx->iv, iv, EVP_CIPHER_CTX_iv_length(ctx)); - wctx->iv = ctx->iv; + memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, EVP_CIPHER_CTX_iv_length(ctx)); + wctx->iv = EVP_CIPHER_CTX_iv_noconst(ctx); } return 1; } @@ -2144,7 +2234,7 @@ static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inlen) { - EVP_AES_WRAP_CTX *wctx = ctx->cipher_data; + EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx); size_t rv; /* AES wrap with padding has IV length of 4, without padding 8 */ int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4; @@ -2155,13 +2245,13 @@ static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, if (!inlen) return -1; /* If decrypting need at least 16 bytes and multiple of 8 */ - if (!ctx->encrypt && (inlen < 16 || inlen & 0x7)) + if (!EVP_CIPHER_CTX_encrypting(ctx) && (inlen < 16 || inlen & 0x7)) return -1; /* If not padding input must be multiple of 8 */ if (!pad && inlen & 0x7) return -1; if (!out) { - if (ctx->encrypt) { + if (EVP_CIPHER_CTX_encrypting(ctx)) { /* If padding round up to multiple of 8 */ if (pad) inlen = (inlen + 7) / 8 * 8; @@ -2177,7 +2267,7 @@ static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, } } if (pad) { - if (ctx->encrypt) + if (EVP_CIPHER_CTX_encrypting(ctx)) rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv, out, in, inlen, (block128_f) AES_encrypt); @@ -2186,7 +2276,7 @@ static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, out, in, inlen, (block128_f) AES_decrypt); } else { - if (ctx->encrypt) + if (EVP_CIPHER_CTX_encrypting(ctx)) rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv, out, in, inlen, (block128_f) AES_encrypt); else @@ -2287,7 +2377,7 @@ const EVP_CIPHER *EVP_aes_256_wrap_pad(void) # ifndef OPENSSL_NO_OCB static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) { - EVP_AES_OCB_CTX *octx = c->cipher_data; + EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c); EVP_CIPHER_CTX *newc; EVP_AES_OCB_CTX *new_octx; @@ -2295,8 +2385,8 @@ static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) case EVP_CTRL_INIT: octx->key_set = 0; octx->iv_set = 0; - octx->ivlen = c->cipher->iv_len; - octx->iv = c->iv; + octx->ivlen = EVP_CIPHER_CTX_iv_length(c); + octx->iv = EVP_CIPHER_CTX_iv_noconst(c); octx->taglen = 16; octx->data_buf_len = 0; octx->aad_buf_len = 0; @@ -2319,13 +2409,13 @@ static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) octx->taglen = arg; return 1; } - if (arg != octx->taglen || c->encrypt) + if (arg != octx->taglen || EVP_CIPHER_CTX_encrypting(c)) return 0; memcpy(octx->tag, ptr, arg); return 1; case EVP_CTRL_AEAD_GET_TAG: - if (arg != octx->taglen || !c->encrypt) + if (arg != octx->taglen || !EVP_CIPHER_CTX_encrypting(c)) return 0; memcpy(ptr, octx->tag, arg); @@ -2333,7 +2423,7 @@ static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) case EVP_CTRL_COPY: newc = (EVP_CIPHER_CTX *)ptr; - new_octx = newc->cipher_data; + new_octx = EVP_C_DATA(EVP_AES_OCB_CTX,newc); return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb, &new_octx->ksenc.ks, &new_octx->ksdec.ks); @@ -2370,7 +2460,7 @@ void HWAES_ocb_decrypt(const unsigned char *in, unsigned char *out, static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv, int enc) { - EVP_AES_OCB_CTX *octx = ctx->cipher_data; + EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx); if (!iv && !key) return 1; if (key) { @@ -2382,8 +2472,10 @@ static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, */ # ifdef HWAES_CAPABLE if (HWAES_CAPABLE) { - HWAES_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks); - HWAES_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks); + HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &octx->ksenc.ks); + HWAES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &octx->ksdec.ks); if (!CRYPTO_ocb128_init(&octx->ocb, &octx->ksenc.ks, &octx->ksdec.ks, (block128_f) HWAES_encrypt, @@ -2396,8 +2488,10 @@ static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, # endif # ifdef VPAES_CAPABLE if (VPAES_CAPABLE) { - vpaes_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks); - vpaes_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks); + vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &octx->ksenc.ks); + vpaes_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &octx->ksdec.ks); if (!CRYPTO_ocb128_init(&octx->ocb, &octx->ksenc.ks, &octx->ksdec.ks, (block128_f) vpaes_encrypt, @@ -2407,8 +2501,10 @@ static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, break; } # endif - AES_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks); - AES_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks); + AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &octx->ksenc.ks); + AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, + &octx->ksdec.ks); if (!CRYPTO_ocb128_init(&octx->ocb, &octx->ksenc.ks, &octx->ksdec.ks, (block128_f) AES_encrypt, @@ -2448,7 +2544,7 @@ static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, int *buf_len; int written_len = 0; size_t trailing_len; - EVP_AES_OCB_CTX *octx = ctx->cipher_data; + EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx); /* If IV or Key not set then return error */ if (!octx->iv_set) @@ -2497,7 +2593,7 @@ static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, if (out == NULL) { if (!CRYPTO_ocb128_aad(&octx->ocb, buf, 16)) return -1; - } else if (ctx->encrypt) { + } else if (EVP_CIPHER_CTX_encrypting(ctx)) { if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out, 16)) return -1; } else { @@ -2518,7 +2614,7 @@ static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, if (out == NULL) { if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len)) return -1; - } else if (ctx->encrypt) { + } else if (EVP_CIPHER_CTX_encrypting(ctx)) { if (!CRYPTO_ocb128_encrypt (&octx->ocb, in, out, len - trailing_len)) return -1; @@ -2544,7 +2640,7 @@ static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, * have been provided - both for data and AAD */ if (octx->data_buf_len) { - if (ctx->encrypt) { + if (EVP_CIPHER_CTX_encrypting(ctx)) { if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out, octx->data_buf_len)) return -1; @@ -2563,7 +2659,7 @@ static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, octx->aad_buf_len = 0; } /* If decrypting then verify */ - if (!ctx->encrypt) { + if (!EVP_CIPHER_CTX_encrypting(ctx)) { if (octx->taglen < 0) return -1; if (CRYPTO_ocb128_finish(&octx->ocb, @@ -2583,7 +2679,7 @@ static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, static int aes_ocb_cleanup(EVP_CIPHER_CTX *c) { - EVP_AES_OCB_CTX *octx = c->cipher_data; + EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c); CRYPTO_ocb128_cleanup(&octx->ocb); return 1; } |