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* Added named unions in SHA256 code for compilers that don't support it.

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* Some other porting suggestions from Chris Ghormley.

git-svn-id: svn://svn.code.sf.net/p/axtls/code/trunk@248 9a5d90b5-6617-0410-8a86-bb477d3ed2e3
This commit is contained in:
cameronrich
2015-04-30 06:06:09 +00:00
parent a88fd947b2
commit acf35f0ea7
7 changed files with 54 additions and 45 deletions
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62
crypto/sha512.c
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@ -83,14 +83,14 @@ static const uint64_t k[80] =
*/
void SHA512_Init(SHA512_CTX *ctx)
{
ctx->h[0] = 0x6A09E667F3BCC908;
ctx->h[1] = 0xBB67AE8584CAA73B;
ctx->h[2] = 0x3C6EF372FE94F82B;
ctx->h[3] = 0xA54FF53A5F1D36F1;
ctx->h[4] = 0x510E527FADE682D1;
ctx->h[5] = 0x9B05688C2B3E6C1F;
ctx->h[6] = 0x1F83D9ABFB41BD6B;
ctx->h[7] = 0x5BE0CD19137E2179;
ctx->h_dig.h[0] = 0x6A09E667F3BCC908;
ctx->h_dig.h[1] = 0xBB67AE8584CAA73B;
ctx->h_dig.h[2] = 0x3C6EF372FE94F82B;
ctx->h_dig.h[3] = 0xA54FF53A5F1D36F1;
ctx->h_dig.h[4] = 0x510E527FADE682D1;
ctx->h_dig.h[5] = 0x9B05688C2B3E6C1F;
ctx->h_dig.h[6] = 0x1F83D9ABFB41BD6B;
ctx->h_dig.h[7] = 0x5BE0CD19137E2179;
ctx->size = 0;
ctx->totalSize = 0;
}
@ -102,22 +102,22 @@ static void SHA512_Process(SHA512_CTX *ctx)
uint64_t temp2;
// Initialize the 8 working registers
uint64_t a = ctx->h[0];
uint64_t b = ctx->h[1];
uint64_t c = ctx->h[2];
uint64_t d = ctx->h[3];
uint64_t e = ctx->h[4];
uint64_t f = ctx->h[5];
uint64_t g = ctx->h[6];
uint64_t h = ctx->h[7];
uint64_t a = ctx->h_dig.h[0];
uint64_t b = ctx->h_dig.h[1];
uint64_t c = ctx->h_dig.h[2];
uint64_t d = ctx->h_dig.h[3];
uint64_t e = ctx->h_dig.h[4];
uint64_t f = ctx->h_dig.h[5];
uint64_t g = ctx->h_dig.h[6];
uint64_t h = ctx->h_dig.h[7];
// Process message in 16-word blocks
uint64_t *w = ctx->w;
uint64_t *w = ctx->w_buf.w;
// Convert from big-endian byte order to host byte order
for (t = 0; t < 16; t++)
w[t] = be64toh(w[t]);
// Prepare the message schedule
for (t = 16; t < 80; t++)
w[t] = SIGMA4(w[t - 2]) + w[t - 7] + SIGMA3(w[t - 15]) + w[t - 16];
@ -141,14 +141,14 @@ static void SHA512_Process(SHA512_CTX *ctx)
}
// Update the hash value
ctx->h[0] += a;
ctx->h[1] += b;
ctx->h[2] += c;
ctx->h[3] += d;
ctx->h[4] += e;
ctx->h[5] += f;
ctx->h[6] += g;
ctx->h[7] += h;
ctx->h_dig.h[0] += a;
ctx->h_dig.h[1] += b;
ctx->h_dig.h[2] += c;
ctx->h_dig.h[3] += d;
ctx->h_dig.h[4] += e;
ctx->h_dig.h[5] += f;
ctx->h_dig.h[6] += g;
ctx->h_dig.h[7] += h;
}
/**
@ -163,7 +163,7 @@ void SHA512_Update(SHA512_CTX *ctx, const uint8_t * msg, int len)
size_t n = MIN(len, 128 - ctx->size);
// Copy the data to the buffer
memcpy(ctx->buffer + ctx->size, msg, n);
memcpy(ctx->w_buf.buffer + ctx->size, msg, n);
// Update the SHA-512 ctx
ctx->size += n;
@ -203,18 +203,18 @@ void SHA512_Final(uint8_t *digest, SHA512_CTX *ctx)
SHA512_Update(ctx, padding, paddingSize);
// Append the length of the original message
ctx->w[14] = 0;
ctx->w[15] = be64toh(totalSize);
ctx->w_buf.w[14] = 0;
ctx->w_buf.w[15] = be64toh(totalSize);
// Calculate the message digest
SHA512_Process(ctx);
// Convert from host byte order to big-endian byte order
for (i = 0; i < 8; i++)
ctx->h[i] = be64toh(ctx->h[i]);
ctx->h_dig.h[i] = be64toh(ctx->h_dig.h[i]);
// Copy the resulting digest
if (digest != NULL)
memcpy(digest, ctx->digest, SHA512_SIZE);
memcpy(digest, ctx->h_dig.digest, SHA512_SIZE);
}