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#ifdef FREEBL_NO_DEPEND
#include "stubs.h"
#endif
#include "prtypes.h" /* for PRUintXX */
#include "secport.h" /* for PORT_XXX */
#include "blapi.h"
#include "blapii.h"
#include "blapit.h"
#include "secerr.h"
#include "Hacl_Hash_SHA3.h"
struct SHAKEContextStr {
Hacl_Streaming_Keccak_state *st;
};
SHAKE_128Context *
SHAKE_128_NewContext()
{
SHAKE_128Context *ctx = PORT_New(SHAKE_128Context);
ctx->st = Hacl_Streaming_Keccak_malloc(Spec_Hash_Definitions_Shake128);
return ctx;
}
SHAKE_256Context *
SHAKE_256_NewContext()
{
SHAKE_256Context *ctx = PORT_New(SHAKE_256Context);
ctx->st = Hacl_Streaming_Keccak_malloc(Spec_Hash_Definitions_Shake256);
return ctx;
}
void
SHAKE_128_DestroyContext(SHAKE_128Context *ctx, PRBool freeit)
{
Hacl_Streaming_Keccak_reset(ctx->st);
if (freeit) {
Hacl_Streaming_Keccak_free(ctx->st);
PORT_Free(ctx);
}
}
void
SHAKE_256_DestroyContext(SHAKE_256Context *ctx, PRBool freeit)
{
Hacl_Streaming_Keccak_reset(ctx->st);
if (freeit) {
Hacl_Streaming_Keccak_free(ctx->st);
PORT_Free(ctx);
}
}
void
SHAKE_128_Begin(SHAKE_128Context *ctx)
{
Hacl_Streaming_Keccak_reset(ctx->st);
}
void
SHAKE_256_Begin(SHAKE_256Context *ctx)
{
Hacl_Streaming_Keccak_reset(ctx->st);
}
void
SHAKE_128_Absorb(SHAKE_128Context *ctx, const unsigned char *input,
unsigned int inputLen)
{
Hacl_Streaming_Keccak_update(ctx->st, (uint8_t *)input, inputLen);
}
void
SHAKE_256_Absorb(SHAKE_256Context *ctx, const unsigned char *input,
unsigned int inputLen)
{
Hacl_Streaming_Keccak_update(ctx->st, (uint8_t *)input, inputLen);
}
void
SHAKE_128_SqueezeEnd(SHAKE_128Context *ctx, unsigned char *digest,
unsigned int digestLen)
{
Hacl_Streaming_Keccak_squeeze(ctx->st, digest, digestLen);
}
void
SHAKE_256_SqueezeEnd(SHAKE_256Context *ctx, unsigned char *digest,
unsigned int digestLen)
{
Hacl_Streaming_Keccak_squeeze(ctx->st, digest, digestLen);
}
SECStatus
SHAKE_128_HashBuf(unsigned char *dest, PRUint32 dest_length,
const unsigned char *src, PRUint32 src_length)
{
SHAKE_128Context *ctx = SHAKE_128_NewContext();
SHAKE_128_Begin(ctx);
SHAKE_128_Absorb(ctx, src, src_length);
SHAKE_128_SqueezeEnd(ctx, dest, dest_length);
SHAKE_128_DestroyContext(ctx, true);
return SECSuccess;
}
SECStatus
SHAKE_256_HashBuf(unsigned char *dest, PRUint32 dest_length,
const unsigned char *src, PRUint32 src_length)
{
SHAKE_256Context *ctx = SHAKE_256_NewContext();
SHAKE_256_Begin(ctx);
SHAKE_256_Absorb(ctx, src, src_length);
SHAKE_256_SqueezeEnd(ctx, dest, dest_length);
SHAKE_256_DestroyContext(ctx, true);
return SECSuccess;
}
SECStatus
SHAKE_128_Hash(unsigned char *dest, unsigned int dest_length, const char *src)
{
return SHAKE_128_HashBuf(dest, dest_length, (const unsigned char *)src, PORT_Strlen(src));
}
SECStatus
SHAKE_256_Hash(unsigned char *dest, unsigned int dest_length, const char *src)
{
return SHAKE_256_HashBuf(dest, dest_length, (const unsigned char *)src, PORT_Strlen(src));
}
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