diff options
Diffstat (limited to 'crypto/evp/e_des3.c')
| -rw-r--r-- | crypto/evp/e_des3.c | 66 |
1 files changed, 54 insertions, 12 deletions
diff --git a/crypto/evp/e_des3.c b/crypto/evp/e_des3.c index ac148efab2..3232cfe024 100644 --- a/crypto/evp/e_des3.c +++ b/crypto/evp/e_des3.c @@ -85,7 +85,7 @@ typedef struct /* Because of various casts and different args can't use IMPLEMENT_BLOCK_CIPHER */ static int des_ede_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, unsigned int inl) + const unsigned char *in, size_t inl) { BLOCK_CIPHER_ecb_loop() DES_ecb3_encrypt((const_DES_cblock *)(in + i), @@ -97,16 +97,27 @@ static int des_ede_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, } static int des_ede_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, unsigned int inl) + const unsigned char *in, size_t inl) { - DES_ede3_ofb64_encrypt(in, out, (long)inl, + if (inl>=EVP_MAXCHUNK) + { + DES_ede3_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK, &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3, (DES_cblock *)ctx->iv, &ctx->num); + inl-=EVP_MAXCHUNK; + in +=EVP_MAXCHUNK; + out+=EVP_MAXCHUNK; + } + if (inl) + DES_ede3_ofb64_encrypt(in, out, (long)inl, + &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3, + (DES_cblock *)ctx->iv, &ctx->num); + return 1; } static int des_ede_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, unsigned int inl) + const unsigned char *in, size_t inl) { #ifdef KSSL_DEBUG { @@ -119,27 +130,47 @@ static int des_ede_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, printf("\n"); } #endif /* KSSL_DEBUG */ - DES_ede3_cbc_encrypt(in, out, (long)inl, + if (inl>=EVP_MAXCHUNK) + { + DES_ede3_cbc_encrypt(in, out, (long)EVP_MAXCHUNK, &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3, (DES_cblock *)ctx->iv, ctx->encrypt); + inl-=EVP_MAXCHUNK; + in +=EVP_MAXCHUNK; + out+=EVP_MAXCHUNK; + } + if (inl) + DES_ede3_cbc_encrypt(in, out, (long)inl, + &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3, + (DES_cblock *)ctx->iv, ctx->encrypt); return 1; } static int des_ede_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, unsigned int inl) + const unsigned char *in, size_t inl) { - DES_ede3_cfb64_encrypt(in, out, (long)inl, + if (inl>=EVP_MAXCHUNK) + { + DES_ede3_cfb64_encrypt(in, out, (long)EVP_MAXCHUNK, &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3, (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt); + inl-=EVP_MAXCHUNK; + in +=EVP_MAXCHUNK; + out+=EVP_MAXCHUNK; + } + if (inl) + DES_ede3_cfb64_encrypt(in, out, (long)inl, + &data(ctx)->ks1, &data(ctx)->ks2, &data(ctx)->ks3, + (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt); return 1; } /* Although we have a CFB-r implementation for 3-DES, it doesn't pack the right way, so wrap it here */ static int des_ede3_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, unsigned int inl) + const unsigned char *in, size_t inl) { - unsigned int n; + size_t n; unsigned char c[1],d[1]; for(n=0 ; n < inl ; ++n) @@ -148,18 +179,29 @@ static int des_ede3_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, DES_ede3_cfb_encrypt(c,d,1,1, &data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3, (DES_cblock *)ctx->iv,ctx->encrypt); - out[n/8]=(out[n/8]&~(0x80 >> (n%8)))|((d[0]&0x80) >> (n%8)); + out[n/8]=(out[n/8]&~(0x80 >> (unsigned int)(n%8))) | + ((d[0]&0x80) >> (unsigned int)(n%8)); } return 1; } static int des_ede3_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, unsigned int inl) + const unsigned char *in, size_t inl) { - DES_ede3_cfb_encrypt(in,out,8,inl, + while (inl>=EVP_MAXCHUNK) + { + DES_ede3_cfb_encrypt(in,out,8,(long)EVP_MAXCHUNK, &data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3, (DES_cblock *)ctx->iv,ctx->encrypt); + inl-=EVP_MAXCHUNK; + in +=EVP_MAXCHUNK; + out+=EVP_MAXCHUNK; + } + if (inl) + DES_ede3_cfb_encrypt(in,out,8,(long)inl, + &data(ctx)->ks1,&data(ctx)->ks2,&data(ctx)->ks3, + (DES_cblock *)ctx->iv,ctx->encrypt); return 1; } |