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author | Richard Levitte <levitte@openssl.org> | 2015-12-18 16:37:02 +0100 |
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committer | Richard Levitte <levitte@openssl.org> | 2016-01-12 13:52:22 +0100 |
commit | e79f877333dcdc2ca51442d8339253e29c31a0d6 (patch) | |
tree | 111a3e888f198f68f01cb03e27bd7842afdf5f35 /crypto/evp/evp_locl.h | |
parent | 480d33237df3894ea8df6f2a2e2076fa30efb205 (diff) | |
download | openssl-e79f877333dcdc2ca51442d8339253e29c31a0d6.tar.gz |
Make EVP_CIPHER opaque and add creator/destructor/accessor/writer functions
We follow the method used for EVP_MD.
Also, move all the internal EVP_CIPHER building macros from evp_locl.h
to evp_int.h. This will benefit our builtin EVP_CIPHERs.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Diffstat (limited to 'crypto/evp/evp_locl.h')
-rw-r--r-- | crypto/evp/evp_locl.h | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/crypto/evp/evp_locl.h b/crypto/evp/evp_locl.h index 8e0e99e7f2..d93ea34fb3 100644 --- a/crypto/evp/evp_locl.h +++ b/crypto/evp/evp_locl.h @@ -91,210 +91,6 @@ struct evp_cipher_ctx_st { unsigned char final[EVP_MAX_BLOCK_LENGTH]; /* possible final block */ } /* EVP_CIPHER_CTX */ ; -/* Macros to code block cipher wrappers */ - -/* Wrapper functions for each cipher mode */ - -#define BLOCK_CIPHER_ecb_loop() \ - size_t i, bl; \ - bl = ctx->cipher->block_size;\ - if(inl < bl) return 1;\ - inl -= bl; \ - for(i=0; i <= inl; i+=bl) - -#define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \ -static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \ -{\ - BLOCK_CIPHER_ecb_loop() \ - cprefix##_ecb_encrypt(in + i, out + i, &((kstruct *)ctx->cipher_data)->ksched, ctx->encrypt);\ - return 1;\ -} - -#define EVP_MAXCHUNK ((size_t)1<<(sizeof(long)*8-2)) - -#define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \ -static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \ -{\ - while(inl>=EVP_MAXCHUNK)\ - {\ - cprefix##_ofb##cbits##_encrypt(in, out, (long)EVP_MAXCHUNK, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num);\ - inl-=EVP_MAXCHUNK;\ - in +=EVP_MAXCHUNK;\ - out+=EVP_MAXCHUNK;\ - }\ - if (inl)\ - cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num);\ - return 1;\ -} - -#define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \ -static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \ -{\ - while(inl>=EVP_MAXCHUNK) \ - {\ - cprefix##_cbc_encrypt(in, out, (long)EVP_MAXCHUNK, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, ctx->encrypt);\ - inl-=EVP_MAXCHUNK;\ - in +=EVP_MAXCHUNK;\ - out+=EVP_MAXCHUNK;\ - }\ - if (inl)\ - cprefix##_cbc_encrypt(in, out, (long)inl, &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, ctx->encrypt);\ - return 1;\ -} - -#define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \ -static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \ -{\ - size_t chunk=EVP_MAXCHUNK;\ - if (cbits==1) chunk>>=3;\ - if (inl<chunk) chunk=inl;\ - while(inl && inl>=chunk)\ - {\ - cprefix##_cfb##cbits##_encrypt(in, out, (long)((cbits==1) && !(ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) ?inl*8:inl), &((kstruct *)ctx->cipher_data)->ksched, ctx->iv, &ctx->num, ctx->encrypt);\ - inl-=chunk;\ - in +=chunk;\ - out+=chunk;\ - if(inl<chunk) chunk=inl;\ - }\ - return 1;\ -} - -#define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \ - BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \ - BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \ - BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \ - BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) - -#define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \ - key_len, iv_len, flags, init_key, cleanup, \ - set_asn1, get_asn1, ctrl) \ -static const EVP_CIPHER cname##_##mode = { \ - nid##_##nmode, block_size, key_len, iv_len, \ - flags | EVP_CIPH_##MODE##_MODE, \ - init_key, \ - cname##_##mode##_cipher, \ - cleanup, \ - sizeof(kstruct), \ - set_asn1, get_asn1,\ - ctrl, \ - NULL \ -}; \ -const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; } - -#define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \ - iv_len, flags, init_key, cleanup, set_asn1, \ - get_asn1, ctrl) \ -BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \ - iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl) - -#define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \ - iv_len, cbits, flags, init_key, cleanup, \ - set_asn1, get_asn1, ctrl) \ -BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \ - key_len, iv_len, flags, init_key, cleanup, set_asn1, \ - get_asn1, ctrl) - -#define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \ - iv_len, cbits, flags, init_key, cleanup, \ - set_asn1, get_asn1, ctrl) \ -BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \ - key_len, iv_len, flags, init_key, cleanup, set_asn1, \ - get_asn1, ctrl) - -#define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \ - flags, init_key, cleanup, set_asn1, \ - get_asn1, ctrl) \ -BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \ - 0, flags, init_key, cleanup, set_asn1, get_asn1, ctrl) - -#define BLOCK_CIPHER_defs(cname, kstruct, \ - nid, block_size, key_len, iv_len, cbits, flags, \ - init_key, cleanup, set_asn1, get_asn1, ctrl) \ -BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \ - init_key, cleanup, set_asn1, get_asn1, ctrl) \ -BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \ - flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \ -BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \ - flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \ -BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, flags, \ - init_key, cleanup, set_asn1, get_asn1, ctrl) - -/*- -#define BLOCK_CIPHER_defs(cname, kstruct, \ - nid, block_size, key_len, iv_len, flags,\ - init_key, cleanup, set_asn1, get_asn1, ctrl)\ -static const EVP_CIPHER cname##_cbc = {\ - nid##_cbc, block_size, key_len, iv_len, \ - flags | EVP_CIPH_CBC_MODE,\ - init_key,\ - cname##_cbc_cipher,\ - cleanup,\ - sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\ - sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ - set_asn1, get_asn1,\ - ctrl, \ - NULL \ -};\ -const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\ -static const EVP_CIPHER cname##_cfb = {\ - nid##_cfb64, 1, key_len, iv_len, \ - flags | EVP_CIPH_CFB_MODE,\ - init_key,\ - cname##_cfb_cipher,\ - cleanup,\ - sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\ - sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ - set_asn1, get_asn1,\ - ctrl,\ - NULL \ -};\ -const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\ -static const EVP_CIPHER cname##_ofb = {\ - nid##_ofb64, 1, key_len, iv_len, \ - flags | EVP_CIPH_OFB_MODE,\ - init_key,\ - cname##_ofb_cipher,\ - cleanup,\ - sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\ - sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ - set_asn1, get_asn1,\ - ctrl,\ - NULL \ -};\ -const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\ -static const EVP_CIPHER cname##_ecb = {\ - nid##_ecb, block_size, key_len, iv_len, \ - flags | EVP_CIPH_ECB_MODE,\ - init_key,\ - cname##_ecb_cipher,\ - cleanup,\ - sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\ - sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\ - set_asn1, get_asn1,\ - ctrl,\ - NULL \ -};\ -const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; } -*/ - -#define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \ - block_size, key_len, iv_len, cbits, \ - flags, init_key, \ - cleanup, set_asn1, get_asn1, ctrl) \ - BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \ - BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, \ - cbits, flags, init_key, cleanup, set_asn1, \ - get_asn1, ctrl) - -#define EVP_C_DATA(kstruct, ctx) ((kstruct *)(ctx)->cipher_data) - -#define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len,fl) \ - BLOCK_CIPHER_func_cfb(cipher##_##keysize,cprefix,cbits,kstruct,ksched) \ - BLOCK_CIPHER_def_cfb(cipher##_##keysize,kstruct, \ - NID_##cipher##_##keysize, keysize/8, iv_len, cbits, \ - (fl)|EVP_CIPH_FLAG_DEFAULT_ASN1, \ - cipher##_init_key, NULL, NULL, NULL, NULL) - int PKCS5_v2_PBKDF2_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen, ASN1_TYPE *param, const EVP_CIPHER *c, const EVP_MD *md, |