diff options
Diffstat (limited to 'crypto/evp/evp_enc.c')
| -rw-r--r-- | crypto/evp/evp_enc.c | 53 |
1 files changed, 37 insertions, 16 deletions
diff --git a/crypto/evp/evp_enc.c b/crypto/evp/evp_enc.c index c495200282..6e582c458d 100644 --- a/crypto/evp/evp_enc.c +++ b/crypto/evp/evp_enc.c @@ -66,7 +66,7 @@ #endif #include "evp_locl.h" -const char *EVP_version="EVP" OPENSSL_VERSION_PTEXT; +const char EVP_version[]="EVP" OPENSSL_VERSION_PTEXT; void EVP_CIPHER_CTX_init(EVP_CIPHER_CTX *ctx) { @@ -74,6 +74,13 @@ void EVP_CIPHER_CTX_init(EVP_CIPHER_CTX *ctx) /* ctx->cipher=NULL; */ } +EVP_CIPHER_CTX *EVP_CIPHER_CTX_new(void) + { + EVP_CIPHER_CTX *ctx=OPENSSL_malloc(sizeof *ctx); + if (ctx) + EVP_CIPHER_CTX_init(ctx); + return ctx; + } int EVP_CipherInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher, const unsigned char *key, const unsigned char *iv, int enc) @@ -117,7 +124,7 @@ int EVP_CipherInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher, ENGINE *imp { if (!ENGINE_init(impl)) { - EVPerr(EVP_F_EVP_CIPHERINIT, EVP_R_INITIALIZATION_ERROR); + EVPerr(EVP_F_EVP_CIPHERINIT_EX, EVP_R_INITIALIZATION_ERROR); return 0; } } @@ -134,7 +141,7 @@ int EVP_CipherInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher, ENGINE *imp * control history, is that we should at least * be able to avoid using US mispellings of * "initialisation"? */ - EVPerr(EVP_F_EVP_CIPHERINIT, EVP_R_INITIALIZATION_ERROR); + EVPerr(EVP_F_EVP_CIPHERINIT_EX, EVP_R_INITIALIZATION_ERROR); return 0; } /* We'll use the ENGINE's private cipher definition */ @@ -154,7 +161,7 @@ int EVP_CipherInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher, ENGINE *imp ctx->cipher_data=OPENSSL_malloc(ctx->cipher->ctx_size); if (!ctx->cipher_data) { - EVPerr(EVP_F_EVP_CIPHERINIT, ERR_R_MALLOC_FAILURE); + EVPerr(EVP_F_EVP_CIPHERINIT_EX, ERR_R_MALLOC_FAILURE); return 0; } } @@ -168,14 +175,14 @@ int EVP_CipherInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher, ENGINE *imp { if(!EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_INIT, 0, NULL)) { - EVPerr(EVP_F_EVP_CIPHERINIT, EVP_R_INITIALIZATION_ERROR); + EVPerr(EVP_F_EVP_CIPHERINIT_EX, EVP_R_INITIALIZATION_ERROR); return 0; } } } else if(!ctx->cipher) { - EVPerr(EVP_F_EVP_CIPHERINIT, EVP_R_NO_CIPHER_SET); + EVPerr(EVP_F_EVP_CIPHERINIT_EX, EVP_R_NO_CIPHER_SET); return 0; } #ifndef OPENSSL_NO_ENGINE @@ -272,7 +279,12 @@ int EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl, { int i,j,bl; - OPENSSL_assert(inl > 0); + if (inl <= 0) + { + *outl = 0; + return inl == 0; + } + if(ctx->buf_len == 0 && (inl&(ctx->block_mask)) == 0) { if(ctx->cipher->do_cipher(ctx,out,in,inl)) @@ -349,7 +361,7 @@ int EVP_EncryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl) { if(bl) { - EVPerr(EVP_F_EVP_ENCRYPTFINAL,EVP_R_DATA_NOT_MULTIPLE_OF_BLOCK_LENGTH); + EVPerr(EVP_F_EVP_ENCRYPTFINAL_EX,EVP_R_DATA_NOT_MULTIPLE_OF_BLOCK_LENGTH); return 0; } *outl = 0; @@ -374,10 +386,10 @@ int EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl, int fix_len; unsigned int b; - if (inl == 0) + if (inl <= 0) { - *outl=0; - return 1; + *outl = 0; + return inl == 0; } if (ctx->flags & EVP_CIPH_NO_PADDING) @@ -434,7 +446,7 @@ int EVP_DecryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl) { if(ctx->buf_len) { - EVPerr(EVP_F_EVP_DECRYPTFINAL,EVP_R_DATA_NOT_MULTIPLE_OF_BLOCK_LENGTH); + EVPerr(EVP_F_EVP_DECRYPTFINAL_EX,EVP_R_DATA_NOT_MULTIPLE_OF_BLOCK_LENGTH); return 0; } *outl = 0; @@ -444,21 +456,21 @@ int EVP_DecryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl) { if (ctx->buf_len || !ctx->final_used) { - EVPerr(EVP_F_EVP_DECRYPTFINAL,EVP_R_WRONG_FINAL_BLOCK_LENGTH); + EVPerr(EVP_F_EVP_DECRYPTFINAL_EX,EVP_R_WRONG_FINAL_BLOCK_LENGTH); return(0); } OPENSSL_assert(b <= sizeof ctx->final); n=ctx->final[b-1]; - if (n > (int)b) + if (n == 0 || n > (int)b) { - EVPerr(EVP_F_EVP_DECRYPTFINAL,EVP_R_BAD_DECRYPT); + EVPerr(EVP_F_EVP_DECRYPTFINAL_EX,EVP_R_BAD_DECRYPT); return(0); } for (i=0; i<n; i++) { if (ctx->final[--b] != n) { - EVPerr(EVP_F_EVP_DECRYPTFINAL,EVP_R_BAD_DECRYPT); + EVPerr(EVP_F_EVP_DECRYPTFINAL_EX,EVP_R_BAD_DECRYPT); return(0); } } @@ -472,6 +484,15 @@ int EVP_DecryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl) return(1); } +void EVP_CIPHER_CTX_free(EVP_CIPHER_CTX *ctx) + { + if (ctx) + { + EVP_CIPHER_CTX_cleanup(ctx); + OPENSSL_free(ctx); + } + } + int EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *c) { if (c->cipher != NULL) |