X-Git-Url: http://git.silcnet.org/gitweb/?a=blobdiff_plain;f=lib%2Fsilccrypt%2Fblowfish.c;h=862f1c2015f0ac980b90998d542bbaf92a1bdf44;hb=9f20f0382b6229eca740925a73f96294f6dcedc6;hp=cf6fe609400dec5ca0973db6d342cb1188b62abe;hpb=4a474e9a2bd781802b9adfc7cac1f32e5e1c4704;p=crypto.git diff --git a/lib/silccrypt/blowfish.c b/lib/silccrypt/blowfish.c index cf6fe609..862f1c20 100644 --- a/lib/silccrypt/blowfish.c +++ b/lib/silccrypt/blowfish.c @@ -33,50 +33,51 @@ * */ -#include "silcincludes.h" +#include "silccrypto.h" +#include "blowfish_internal.h" #include "blowfish.h" -/* +/* * SILC Crypto API for Blowfish */ /* Sets the key for the cipher. */ -SILC_CIPHER_API_SET_KEY(blowfish) +SILC_CIPHER_API_SET_KEY(blowfish_cbc) { blowfish_set_key((BlowfishContext *)context, (unsigned char *)key, keylen); return TRUE; } -/* Sets the string as a new key for the cipher. The string is first - hashed and then used as a new key. */ +/* Sets IV for the cipher. */ -SILC_CIPHER_API_SET_KEY_WITH_STRING(blowfish) +SILC_CIPHER_API_SET_IV(blowfish_cbc) { - /* unsigned char key[md5_hash_len]; - SilcMarsContext *ctx = (SilcMarsContext *)context; - make_md5_hash(string, &key); - memcpy(&ctx->key, mars_set_key(&key, keylen), keylen); - memset(&key, 'F', sizeoof(key)); - */ +} + +/* Initialize */ - return 1; +SILC_CIPHER_API_INIT(blowfish_cbc) +{ + return silc_calloc(1, sizeof(BlowfishContext)); } -/* Returns the size of the cipher context. */ +/* Unnitialize */ -SILC_CIPHER_API_CONTEXT_LEN(blowfish) +SILC_CIPHER_API_UNINIT(blowfish_cbc) { - return sizeof(BlowfishContext); + BlowfishContext *b = context; + memset(b, 0, sizeof(*b)); + silc_free(b); } /* Encrypts with the cipher in CBC mode. Source and destination buffers maybe one and same. */ -SILC_CIPHER_API_ENCRYPT_CBC(blowfish) +SILC_CIPHER_API_ENCRYPT(blowfish_cbc) { - uint32 tiv[4]; + SilcUInt32 tiv[4]; int i; SILC_CBC_GET_IV(tiv, iv); @@ -99,9 +100,9 @@ SILC_CIPHER_API_ENCRYPT_CBC(blowfish) /* Decrypts with the cipher in CBC mode. Source and destination buffers maybe one and same. */ -SILC_CIPHER_API_DECRYPT_CBC(blowfish) +SILC_CIPHER_API_DECRYPT(blowfish_cbc) { - uint32 tmp[4], tmp2[4], tiv[4]; + SilcUInt32 tmp[4], tmp2[4], tiv[4]; int i; SILC_CBC_GET_IV(tiv, iv); @@ -115,9 +116,9 @@ SILC_CIPHER_API_DECRYPT_CBC(blowfish) blowfish_decrypt((BlowfishContext *)context, tmp, tmp2, 16); SILC_CBC_DEC_POST(tmp2, dst, src, tmp, tiv); } - + SILC_CBC_PUT_IV(tiv, iv); - + return TRUE; } @@ -390,9 +391,9 @@ static u32 bf_sbox[256 * 4] = 0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6, }; -/* +/* * Round loop unrolling macros, S is a pointer to a S-Box array - * organized in 4 uint32s at a row. + * organized in 4 SilcUInt32s at a row. */ #define GET32_3(x) (((x) & 0xff)) @@ -407,7 +408,7 @@ static u32 bf_sbox[256 * 4] = /* * The blowfish encipher, processes 64-bit blocks. - * NOTE: This function MUSTN'T respect endianess + * NOTE: This function MUSTN'T respect endianess */ int blowfish_encrypt(BlowfishContext *ctx, @@ -533,7 +534,7 @@ int blowfish_set_key(BlowfishContext *ctx, for (i = 0; i < 16 + 2; i += 2) { blowfish_encrypt(ctx, data, data, 8); - + P[i] = data[0]; P[i + 1] = data[1]; }