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-rw-r--r--freebsd/crypto/openssl/crypto/evp/m_sha3.c408
1 files changed, 408 insertions, 0 deletions
diff --git a/freebsd/crypto/openssl/crypto/evp/m_sha3.c b/freebsd/crypto/openssl/crypto/evp/m_sha3.c
new file mode 100644
index 00000000..bbe306f9
--- /dev/null
+++ b/freebsd/crypto/openssl/crypto/evp/m_sha3.c
@@ -0,0 +1,408 @@
+#include <machine/rtems-bsd-user-space.h>
+
+/*
+ * Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include "internal/evp_int.h"
+#include "evp_locl.h"
+
+size_t SHA3_absorb(uint64_t A[5][5], const unsigned char *inp, size_t len,
+ size_t r);
+void SHA3_squeeze(uint64_t A[5][5], unsigned char *out, size_t len, size_t r);
+
+#define KECCAK1600_WIDTH 1600
+
+typedef struct {
+ uint64_t A[5][5];
+ size_t block_size; /* cached ctx->digest->block_size */
+ size_t md_size; /* output length, variable in XOF */
+ size_t num; /* used bytes in below buffer */
+ unsigned char buf[KECCAK1600_WIDTH / 8 - 32];
+ unsigned char pad;
+} KECCAK1600_CTX;
+
+static int init(EVP_MD_CTX *evp_ctx, unsigned char pad)
+{
+ KECCAK1600_CTX *ctx = evp_ctx->md_data;
+ size_t bsz = evp_ctx->digest->block_size;
+
+ if (bsz <= sizeof(ctx->buf)) {
+ memset(ctx->A, 0, sizeof(ctx->A));
+
+ ctx->num = 0;
+ ctx->block_size = bsz;
+ ctx->md_size = evp_ctx->digest->md_size;
+ ctx->pad = pad;
+
+ return 1;
+ }
+
+ return 0;
+}
+
+static int sha3_init(EVP_MD_CTX *evp_ctx)
+{
+ return init(evp_ctx, '\x06');
+}
+
+static int shake_init(EVP_MD_CTX *evp_ctx)
+{
+ return init(evp_ctx, '\x1f');
+}
+
+static int sha3_update(EVP_MD_CTX *evp_ctx, const void *_inp, size_t len)
+{
+ KECCAK1600_CTX *ctx = evp_ctx->md_data;
+ const unsigned char *inp = _inp;
+ size_t bsz = ctx->block_size;
+ size_t num, rem;
+
+ if (len == 0)
+ return 1;
+
+ if ((num = ctx->num) != 0) { /* process intermediate buffer? */
+ rem = bsz - num;
+
+ if (len < rem) {
+ memcpy(ctx->buf + num, inp, len);
+ ctx->num += len;
+ return 1;
+ }
+ /*
+ * We have enough data to fill or overflow the intermediate
+ * buffer. So we append |rem| bytes and process the block,
+ * leaving the rest for later processing...
+ */
+ memcpy(ctx->buf + num, inp, rem);
+ inp += rem, len -= rem;
+ (void)SHA3_absorb(ctx->A, ctx->buf, bsz, bsz);
+ ctx->num = 0;
+ /* ctx->buf is processed, ctx->num is guaranteed to be zero */
+ }
+
+ if (len >= bsz)
+ rem = SHA3_absorb(ctx->A, inp, len, bsz);
+ else
+ rem = len;
+
+ if (rem) {
+ memcpy(ctx->buf, inp + len - rem, rem);
+ ctx->num = rem;
+ }
+
+ return 1;
+}
+
+static int sha3_final(EVP_MD_CTX *evp_ctx, unsigned char *md)
+{
+ KECCAK1600_CTX *ctx = evp_ctx->md_data;
+ size_t bsz = ctx->block_size;
+ size_t num = ctx->num;
+
+ /*
+ * Pad the data with 10*1. Note that |num| can be |bsz - 1|
+ * in which case both byte operations below are performed on
+ * same byte...
+ */
+ memset(ctx->buf + num, 0, bsz - num);
+ ctx->buf[num] = ctx->pad;
+ ctx->buf[bsz - 1] |= 0x80;
+
+ (void)SHA3_absorb(ctx->A, ctx->buf, bsz, bsz);
+
+ SHA3_squeeze(ctx->A, md, ctx->md_size, bsz);
+
+ return 1;
+}
+
+static int shake_ctrl(EVP_MD_CTX *evp_ctx, int cmd, int p1, void *p2)
+{
+ KECCAK1600_CTX *ctx = evp_ctx->md_data;
+
+ switch (cmd) {
+ case EVP_MD_CTRL_XOF_LEN:
+ ctx->md_size = p1;
+ return 1;
+ default:
+ return 0;
+ }
+}
+
+#if defined(OPENSSL_CPUID_OBJ) && defined(__s390__) && defined(KECCAK1600_ASM)
+/*
+ * IBM S390X support
+ */
+# include "s390x_arch.h"
+
+# define S390X_SHA3_FC(ctx) ((ctx)->pad)
+
+# define S390X_sha3_224_CAPABLE ((OPENSSL_s390xcap_P.kimd[0] & \
+ S390X_CAPBIT(S390X_SHA3_224)) && \
+ (OPENSSL_s390xcap_P.klmd[0] & \
+ S390X_CAPBIT(S390X_SHA3_224)))
+# define S390X_sha3_256_CAPABLE ((OPENSSL_s390xcap_P.kimd[0] & \
+ S390X_CAPBIT(S390X_SHA3_256)) && \
+ (OPENSSL_s390xcap_P.klmd[0] & \
+ S390X_CAPBIT(S390X_SHA3_256)))
+# define S390X_sha3_384_CAPABLE ((OPENSSL_s390xcap_P.kimd[0] & \
+ S390X_CAPBIT(S390X_SHA3_384)) && \
+ (OPENSSL_s390xcap_P.klmd[0] & \
+ S390X_CAPBIT(S390X_SHA3_384)))
+# define S390X_sha3_512_CAPABLE ((OPENSSL_s390xcap_P.kimd[0] & \
+ S390X_CAPBIT(S390X_SHA3_512)) && \
+ (OPENSSL_s390xcap_P.klmd[0] & \
+ S390X_CAPBIT(S390X_SHA3_512)))
+# define S390X_shake128_CAPABLE ((OPENSSL_s390xcap_P.kimd[0] & \
+ S390X_CAPBIT(S390X_SHAKE_128)) && \
+ (OPENSSL_s390xcap_P.klmd[0] & \
+ S390X_CAPBIT(S390X_SHAKE_128)))
+# define S390X_shake256_CAPABLE ((OPENSSL_s390xcap_P.kimd[0] & \
+ S390X_CAPBIT(S390X_SHAKE_256)) && \
+ (OPENSSL_s390xcap_P.klmd[0] & \
+ S390X_CAPBIT(S390X_SHAKE_256)))
+
+/* Convert md-size to block-size. */
+# define S390X_KECCAK1600_BSZ(n) ((KECCAK1600_WIDTH - ((n) << 1)) >> 3)
+
+static int s390x_sha3_init(EVP_MD_CTX *evp_ctx)
+{
+ KECCAK1600_CTX *ctx = evp_ctx->md_data;
+ const size_t bsz = evp_ctx->digest->block_size;
+
+ /*-
+ * KECCAK1600_CTX structure's pad field is used to store the KIMD/KLMD
+ * function code.
+ */
+ switch (bsz) {
+ case S390X_KECCAK1600_BSZ(224):
+ ctx->pad = S390X_SHA3_224;
+ break;
+ case S390X_KECCAK1600_BSZ(256):
+ ctx->pad = S390X_SHA3_256;
+ break;
+ case S390X_KECCAK1600_BSZ(384):
+ ctx->pad = S390X_SHA3_384;
+ break;
+ case S390X_KECCAK1600_BSZ(512):
+ ctx->pad = S390X_SHA3_512;
+ break;
+ default:
+ return 0;
+ }
+
+ memset(ctx->A, 0, sizeof(ctx->A));
+ ctx->num = 0;
+ ctx->block_size = bsz;
+ ctx->md_size = evp_ctx->digest->md_size;
+ return 1;
+}
+
+static int s390x_shake_init(EVP_MD_CTX *evp_ctx)
+{
+ KECCAK1600_CTX *ctx = evp_ctx->md_data;
+ const size_t bsz = evp_ctx->digest->block_size;
+
+ /*-
+ * KECCAK1600_CTX structure's pad field is used to store the KIMD/KLMD
+ * function code.
+ */
+ switch (bsz) {
+ case S390X_KECCAK1600_BSZ(128):
+ ctx->pad = S390X_SHAKE_128;
+ break;
+ case S390X_KECCAK1600_BSZ(256):
+ ctx->pad = S390X_SHAKE_256;
+ break;
+ default:
+ return 0;
+ }
+
+ memset(ctx->A, 0, sizeof(ctx->A));
+ ctx->num = 0;
+ ctx->block_size = bsz;
+ ctx->md_size = evp_ctx->digest->md_size;
+ return 1;
+}
+
+static int s390x_sha3_update(EVP_MD_CTX *evp_ctx, const void *_inp, size_t len)
+{
+ KECCAK1600_CTX *ctx = evp_ctx->md_data;
+ const unsigned char *inp = _inp;
+ const size_t bsz = ctx->block_size;
+ size_t num, rem;
+
+ if (len == 0)
+ return 1;
+
+ if ((num = ctx->num) != 0) {
+ rem = bsz - num;
+
+ if (len < rem) {
+ memcpy(ctx->buf + num, inp, len);
+ ctx->num += len;
+ return 1;
+ }
+ memcpy(ctx->buf + num, inp, rem);
+ inp += rem;
+ len -= rem;
+ s390x_kimd(ctx->buf, bsz, ctx->pad, ctx->A);
+ ctx->num = 0;
+ }
+ rem = len % bsz;
+
+ s390x_kimd(inp, len - rem, ctx->pad, ctx->A);
+
+ if (rem) {
+ memcpy(ctx->buf, inp + len - rem, rem);
+ ctx->num = rem;
+ }
+ return 1;
+}
+
+static int s390x_sha3_final(EVP_MD_CTX *evp_ctx, unsigned char *md)
+{
+ KECCAK1600_CTX *ctx = evp_ctx->md_data;
+
+ s390x_klmd(ctx->buf, ctx->num, NULL, 0, ctx->pad, ctx->A);
+ memcpy(md, ctx->A, ctx->md_size);
+ return 1;
+}
+
+static int s390x_shake_final(EVP_MD_CTX *evp_ctx, unsigned char *md)
+{
+ KECCAK1600_CTX *ctx = evp_ctx->md_data;
+
+ s390x_klmd(ctx->buf, ctx->num, md, ctx->md_size, ctx->pad, ctx->A);
+ return 1;
+}
+
+# define EVP_MD_SHA3(bitlen) \
+const EVP_MD *EVP_sha3_##bitlen(void) \
+{ \
+ static const EVP_MD s390x_sha3_##bitlen##_md = { \
+ NID_sha3_##bitlen, \
+ NID_RSA_SHA3_##bitlen, \
+ bitlen / 8, \
+ EVP_MD_FLAG_DIGALGID_ABSENT, \
+ s390x_sha3_init, \
+ s390x_sha3_update, \
+ s390x_sha3_final, \
+ NULL, \
+ NULL, \
+ (KECCAK1600_WIDTH - bitlen * 2) / 8, \
+ sizeof(KECCAK1600_CTX), \
+ }; \
+ static const EVP_MD sha3_##bitlen##_md = { \
+ NID_sha3_##bitlen, \
+ NID_RSA_SHA3_##bitlen, \
+ bitlen / 8, \
+ EVP_MD_FLAG_DIGALGID_ABSENT, \
+ sha3_init, \
+ sha3_update, \
+ sha3_final, \
+ NULL, \
+ NULL, \
+ (KECCAK1600_WIDTH - bitlen * 2) / 8, \
+ sizeof(KECCAK1600_CTX), \
+ }; \
+ return S390X_sha3_##bitlen##_CAPABLE ? \
+ &s390x_sha3_##bitlen##_md : \
+ &sha3_##bitlen##_md; \
+}
+
+# define EVP_MD_SHAKE(bitlen) \
+const EVP_MD *EVP_shake##bitlen(void) \
+{ \
+ static const EVP_MD s390x_shake##bitlen##_md = { \
+ NID_shake##bitlen, \
+ 0, \
+ bitlen / 8, \
+ EVP_MD_FLAG_XOF, \
+ s390x_shake_init, \
+ s390x_sha3_update, \
+ s390x_shake_final, \
+ NULL, \
+ NULL, \
+ (KECCAK1600_WIDTH - bitlen * 2) / 8, \
+ sizeof(KECCAK1600_CTX), \
+ shake_ctrl \
+ }; \
+ static const EVP_MD shake##bitlen##_md = { \
+ NID_shake##bitlen, \
+ 0, \
+ bitlen / 8, \
+ EVP_MD_FLAG_XOF, \
+ shake_init, \
+ sha3_update, \
+ sha3_final, \
+ NULL, \
+ NULL, \
+ (KECCAK1600_WIDTH - bitlen * 2) / 8, \
+ sizeof(KECCAK1600_CTX), \
+ shake_ctrl \
+ }; \
+ return S390X_shake##bitlen##_CAPABLE ? \
+ &s390x_shake##bitlen##_md : \
+ &shake##bitlen##_md; \
+}
+
+#else
+
+# define EVP_MD_SHA3(bitlen) \
+const EVP_MD *EVP_sha3_##bitlen(void) \
+{ \
+ static const EVP_MD sha3_##bitlen##_md = { \
+ NID_sha3_##bitlen, \
+ NID_RSA_SHA3_##bitlen, \
+ bitlen / 8, \
+ EVP_MD_FLAG_DIGALGID_ABSENT, \
+ sha3_init, \
+ sha3_update, \
+ sha3_final, \
+ NULL, \
+ NULL, \
+ (KECCAK1600_WIDTH - bitlen * 2) / 8, \
+ sizeof(KECCAK1600_CTX), \
+ }; \
+ return &sha3_##bitlen##_md; \
+}
+
+# define EVP_MD_SHAKE(bitlen) \
+const EVP_MD *EVP_shake##bitlen(void) \
+{ \
+ static const EVP_MD shake##bitlen##_md = { \
+ NID_shake##bitlen, \
+ 0, \
+ bitlen / 8, \
+ EVP_MD_FLAG_XOF, \
+ shake_init, \
+ sha3_update, \
+ sha3_final, \
+ NULL, \
+ NULL, \
+ (KECCAK1600_WIDTH - bitlen * 2) / 8, \
+ sizeof(KECCAK1600_CTX), \
+ shake_ctrl \
+ }; \
+ return &shake##bitlen##_md; \
+}
+#endif
+
+EVP_MD_SHA3(224)
+EVP_MD_SHA3(256)
+EVP_MD_SHA3(384)
+EVP_MD_SHA3(512)
+
+EVP_MD_SHAKE(128)
+EVP_MD_SHAKE(256)
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-23 08:06:50 +0000