First commit, Vystem v0.1

Blastproof/initfsgen/sha2.h

@@ -0,0 +1,43 @@
+#ifndef SPX_SHA2_H
+#define SPX_SHA2_H
+
+#include "params.h"
+
+#define SPX_SHA256_BLOCK_BYTES 64
+#define SPX_SHA256_OUTPUT_BYTES 32  /* This does not necessarily equal SPX_N */
+
+#define SPX_SHA512_BLOCK_BYTES 128
+#define SPX_SHA512_OUTPUT_BYTES 64
+
+#if SPX_SHA256_OUTPUT_BYTES < SPX_N
+    #error Linking against SHA-256 with N larger than 32 bytes is not supported
+#endif
+
+#define SPX_SHA256_ADDR_BYTES 22
+
+#include <stddef.h>
+#include <stdint.h>
+
+void sha256_inc_init(uint8_t *state);
+void sha256_inc_blocks(uint8_t *state, const uint8_t *in, size_t inblocks);
+void sha256_inc_finalize(uint8_t *out, uint8_t *state, const uint8_t *in, size_t inlen);
+void sha256(uint8_t *out, const uint8_t *in, size_t inlen);
+
+void sha512_inc_init(uint8_t *state);
+void sha512_inc_blocks(uint8_t *state, const uint8_t *in, size_t inblocks);
+void sha512_inc_finalize(uint8_t *out, uint8_t *state, const uint8_t *in, size_t inlen);
+void sha512(uint8_t *out, const uint8_t *in, size_t inlen);
+
+#define mgf1_256 SPX_NAMESPACE(mgf1_256)
+void mgf1_256(unsigned char *out, unsigned long outlen,
+          const unsigned char *in, unsigned long inlen);
+
+#define mgf1_512 SPX_NAMESPACE(mgf1_512)
+void mgf1_512(unsigned char *out, unsigned long outlen,
+          const unsigned char *in, unsigned long inlen);
+
+#define seed_state SPX_NAMESPACE(seed_state)
+void seed_state(spx_ctx *ctx);
+
+
+#endif