diff options
Diffstat (limited to 'cipher/arcfour.c')
| -rw-r--r-- | cipher/arcfour.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/cipher/arcfour.c b/cipher/arcfour.c index 6bb0555c..6ef07fb2 100644 --- a/cipher/arcfour.c +++ b/cipher/arcfour.c @@ -45,7 +45,7 @@ do_encrypt_stream( ARCFOUR_context *ctx, register int i = ctx->idx_i; register int j = ctx->idx_j; register byte *sbox = ctx->sbox; - register int t; + register int t; while ( length-- ) { @@ -56,7 +56,7 @@ do_encrypt_stream( ARCFOUR_context *ctx, t = sbox[i]; sbox[i] = sbox[j]; sbox[j] = t; *outbuf++ = *inbuf++ ^ sbox[(sbox[i] + sbox[j]) & 255]; } - + ctx->idx_i = i; ctx->idx_j = j; } @@ -80,7 +80,7 @@ do_arcfour_setkey (void *context, const byte *key, unsigned int keylen) byte karr[256]; ARCFOUR_context *ctx = (ARCFOUR_context *) context; - if (!initialized ) + if (!initialized ) { initialized = 1; selftest_failed = selftest(); @@ -98,14 +98,14 @@ do_arcfour_setkey (void *context, const byte *key, unsigned int keylen) ctx->sbox[i] = i; for (i=0; i < 256; i++ ) karr[i] = key[i%keylen]; - for (i=j=0; i < 256; i++ ) + for (i=j=0; i < 256; i++ ) { int t; j = (j + ctx->sbox[i] + karr[i]) % 256; t = ctx->sbox[i]; ctx->sbox[i] = ctx->sbox[j]; ctx->sbox[j] = t; - } + } memset( karr, 0, 256 ); return GPG_ERR_NO_ERROR; @@ -125,8 +125,8 @@ static const char* selftest(void) { ARCFOUR_context ctx; - byte scratch[16]; - + byte scratch[16]; + /* Test vector from Cryptlib labeled there: "from the State/Commerce Department". */ static byte key_1[] = @@ -153,4 +153,3 @@ gcry_cipher_spec_t _gcry_cipher_spec_arcfour = "ARCFOUR", NULL, NULL, 1, 128, sizeof (ARCFOUR_context), arcfour_setkey, NULL, NULL, encrypt_stream, encrypt_stream, }; - |