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@@ -44,6 +44,16 @@
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#define SHA256_DIGEST_SIZE ( 256 / 8)
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#define SHA256_DIGEST_SIZE ( 256 / 8)
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#define SHA256_BLOCK_SIZE ( 512 / 8)
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#define SHA256_BLOCK_SIZE ( 512 / 8)
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+#define SHFR(x, n) (x >> n)
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+#define ROTR(x, n) ((x >> n) | (x << ((sizeof(x) << 3) - n)))
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+#define CH(x, y, z) ((x & y) ^ (~x & z))
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+#define MAJ(x, y, z) ((x & y) ^ (x & z) ^ (y & z))
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+
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+#define SHA256_F1(x) (ROTR(x, 2) ^ ROTR(x, 13) ^ ROTR(x, 22))
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+#define SHA256_F2(x) (ROTR(x, 6) ^ ROTR(x, 11) ^ ROTR(x, 25))
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+#define SHA256_F3(x) (ROTR(x, 7) ^ ROTR(x, 18) ^ SHFR(x, 3))
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+#define SHA256_F4(x) (ROTR(x, 17) ^ ROTR(x, 19) ^ SHFR(x, 10))
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+
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typedef struct {
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typedef struct {
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unsigned int tot_len;
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unsigned int tot_len;
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unsigned int len;
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unsigned int len;
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@@ -51,6 +61,8 @@ typedef struct {
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uint32_t h[8];
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uint32_t h[8];
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} sha256_ctx;
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} sha256_ctx;
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+extern uint32_t sha256_k[64];
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+
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void sha256_init(sha256_ctx * ctx);
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void sha256_init(sha256_ctx * ctx);
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void sha256_update(sha256_ctx *ctx, const unsigned char *message,
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void sha256_update(sha256_ctx *ctx, const unsigned char *message,
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unsigned int len);
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unsigned int len);
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