diff options
Diffstat (limited to 'md5.c')
| -rw-r--r--[-rwxr-xr-x] | md5.c | 69 |
1 files changed, 38 insertions, 31 deletions
@@ -33,34 +33,37 @@ void md5_update(struct md5_context *ctx, unsigned char const *buf, unsigned len) // update bit count t = ctx->bits[0]; if((ctx->bits[0] = (t + ((unsigned)len << 3)) & 0xffffffff) < t) - ctx->bits[1]++; // carry + ctx->bits[1]++; // carry ctx->bits[1] += len >> 29; t = (t >> 3) & 0x3f; // use leading data to top up the buffer - if(t) { - unsigned char *p = ctx->in + t; - - t = 64-t; - if (len < t) { - memcpy(p, buf, len); - return; - } - memcpy(p, buf, t); - md5_transform(ctx->buf, ctx->in); - buf += t; - len -= t; + if(t) + { + unsigned char *p = ctx->in + t; + + t = 64-t; + if (len < t) + { + memcpy(p, buf, len); + return; + } + memcpy(p, buf, t); + md5_transform(ctx->buf, ctx->in); + buf += t; + len -= t; } // following 64-byte chunks - while(len >= 64) { - memcpy(ctx->in, buf, 64); - md5_transform(ctx->buf, ctx->in); - buf += 64; - len -= 64; + while(len >= 64) + { + memcpy(ctx->in, buf, 64); + md5_transform(ctx->buf, ctx->in); + buf += 64; + len -= 64; } // save rest of bytes for later @@ -84,14 +87,17 @@ void md5_final(unsigned char digest[16], struct md5_context *ctx) count = 64 - 1 - count; // Pad out to 56 mod 64 - if(count < 8) { - // we need to finish a whole block before padding - memset(p, 0, count); - md5_transform(ctx->buf, ctx->in); - memset(ctx->in, 0, 56); - } else { - // just pad to 56 bytes - memset(p, 0, count-8); + if(count < 8) + { + // we need to finish a whole block before padding + memset(p, 0, count); + md5_transform(ctx->buf, ctx->in); + memset(ctx->in, 0, 56); + } + else + { + // just pad to 56 bytes + memset(p, 0, count-8); } // append length & final transform @@ -121,7 +127,7 @@ void md5_transform(unsigned buf[4], const unsigned char inraw[64]) int i; for (i = 0; i < 16; ++i) - in[i] = getu32 (inraw + 4 * i); + in[i] = getu32 (inraw + 4 * i); a = buf[0]; b = buf[1]; @@ -210,15 +216,16 @@ void md5_ascii(char *result, unsigned char const *buf, unsigned len) int i; if(len==0) - len = strlen((char *)buf); + len = strlen((char *)buf); md5_init(&md5); md5_update(&md5, buf, len); md5_final(hash, &md5); - for(i=0;i<16;i++) { - result[i*2] = hex[(hash[i]>>4)&0xF]; - result[i*2+1] = hex[hash[i]&0x0F]; + for(i=0; i<16; i++) + { + result[i*2] = hex[(hash[i]>>4)&0xF]; + result[i*2+1] = hex[hash[i]&0x0F]; } result[32] = 0; } |