diff options
Diffstat (limited to 'crypto/evp/evp.h')
| -rw-r--r-- | crypto/evp/evp.h | 48 |
1 files changed, 34 insertions, 14 deletions
diff --git a/crypto/evp/evp.h b/crypto/evp/evp.h index c0f982afb1..0d101162e0 100644 --- a/crypto/evp/evp.h +++ b/crypto/evp/evp.h @@ -318,21 +318,37 @@ typedef struct env_md_ctx_st } md; } EVP_MD_CTX; -typedef struct evp_cipher_st +typedef struct evp_cipher_st EVP_CIPHER; +typedef struct evp_cipher_ctx_st EVP_CIPHER_CTX; + +struct evp_cipher_st { int nid; int block_size; - int key_len; + int key_len; /* Default value for variable length ciphers */ int iv_len; - void (*init)(); /* init for encryption */ - void (*do_cipher)(); /* encrypt data */ - void (*cleanup)(); /* used by cipher method */ + unsigned long flags; /* Various flags */ + void (*init)(EVP_CIPHER_CTX *, unsigned char *, unsigned char *, int); /* init key */ + void (*do_cipher)(EVP_CIPHER_CTX *, unsigned char *, unsigned char *, unsigned int);/* encrypt/decrypt data */ + void (*cleanup)(EVP_CIPHER_CTX *); /* cleanup ctx */ int ctx_size; /* how big the ctx needs to be */ - /* int set_asn1_parameters(EVP_CIPHER_CTX,ASN1_TYPE *); */ - int (*set_asn1_parameters)(); /* Populate a ASN1_TYPE with parameters */ - /* int get_asn1_parameters(EVP_CIPHER_CTX,ASN1_TYPE *); */ - int (*get_asn1_parameters)(); /* Get parameters from a ASN1_TYPE */ - } EVP_CIPHER; + int (*set_asn1_parameters)(EVP_CIPHER_CTX *, ASN1_TYPE *); /* Populate a ASN1_TYPE with parameters */ + int (*get_asn1_parameters)(EVP_CIPHER_CTX *, ASN1_TYPE *); /* Get parameters from a ASN1_TYPE */ + int (*ctrl)(EVP_CIPHER_CTX *, int type, int arg, void *ptr); /* Miscellaneous operations */ + }; + +/* Values for cipher flags */ + +/* Modes for block ciphers */ + +#define EVP_CIPH_ECB_MODE 0x1 +#define EVP_CIPH_CBC_MODE 0x2 +#define EVP_CIPH_CFB_MODE 0x3 +#define EVP_CIPH_OFB_MODE 0x4 +#define EVP_CIPH_BLOCK_MODES 0x7 +/* Set if variable length cipher */ +#define EVP_CIPH_VARIABLE_LENGTH 0x8 + typedef struct evp_cipher_info_st { @@ -340,7 +356,7 @@ typedef struct evp_cipher_info_st unsigned char iv[EVP_MAX_IV_LENGTH]; } EVP_CIPHER_INFO; -typedef struct evp_cipher_ctx_st +struct evp_cipher_ctx_st { const EVP_CIPHER *cipher; int encrypt; /* encrypt or decrypt */ @@ -351,7 +367,8 @@ typedef struct evp_cipher_ctx_st unsigned char buf[EVP_MAX_IV_LENGTH]; /* saved partial block */ int num; /* used by cfb/ofb mode */ - char *app_data; /* application stuff */ + void *app_data; /* application stuff */ + int key_len; /* May change for variable length cipher */ union { #ifndef NO_RC4 struct @@ -391,7 +408,7 @@ typedef struct evp_cipher_ctx_st CAST_KEY cast_ks;/* key schedule */ #endif } c; - } EVP_CIPHER_CTX; + }; typedef struct evp_Encode_Ctx_st { @@ -442,7 +459,7 @@ typedef int (EVP_PBE_KEYGEN)(EVP_CIPHER_CTX *ctx, const char *pass, int passlen, #define EVP_CIPHER_CTX_cipher(e) ((e)->cipher) #define EVP_CIPHER_CTX_nid(e) ((e)->cipher->nid) #define EVP_CIPHER_CTX_block_size(e) ((e)->cipher->block_size) -#define EVP_CIPHER_CTX_key_length(e) ((e)->cipher->key_len) +#define EVP_CIPHER_CTX_key_length(e) ((e)->key_len) #define EVP_CIPHER_CTX_iv_length(e) ((e)->cipher->iv_len) #define EVP_CIPHER_CTX_get_app_data(e) ((e)->app_data) #define EVP_CIPHER_CTX_set_app_data(e,d) ((e)->app_data=(char *)(d)) @@ -543,6 +560,7 @@ void ERR_load_EVP_strings(void ); void EVP_CIPHER_CTX_init(EVP_CIPHER_CTX *a); void EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *a); +int EVP_CIPHER_CTX_set_key_length(EVP_CIPHER_CTX *x, int keylen); #ifdef HEADER_BIO_H BIO_METHOD *BIO_f_md(void); @@ -691,6 +709,7 @@ void EVP_PBE_cleanup(void); /* Function codes. */ #define EVP_F_D2I_PKEY 100 +#define EVP_F_EVP_CIPHER_CTX_SET_KEY_LENGTH 122 #define EVP_F_EVP_DECRYPTFINAL 101 #define EVP_F_EVP_MD_CTX_COPY 110 #define EVP_F_EVP_OPENINIT 102 @@ -725,6 +744,7 @@ void EVP_PBE_cleanup(void); #define EVP_R_EXPECTING_A_DH_KEY 128 #define EVP_R_EXPECTING_A_DSA_KEY 129 #define EVP_R_INPUT_NOT_INITIALIZED 111 +#define EVP_R_INVALID_KEY_LENGTH 130 #define EVP_R_IV_TOO_LARGE 102 #define EVP_R_KEYGEN_FAILURE 120 #define EVP_R_MISSING_PARAMETERS 103 |