diff options
Diffstat (limited to 'libs/libsodium/src/crypto_pwhash/argon2/blake2b-long.c')
| -rw-r--r-- | libs/libsodium/src/crypto_pwhash/argon2/blake2b-long.c | 158 |
1 files changed, 79 insertions, 79 deletions
diff --git a/libs/libsodium/src/crypto_pwhash/argon2/blake2b-long.c b/libs/libsodium/src/crypto_pwhash/argon2/blake2b-long.c index f0364aca87..bd6979a12e 100644 --- a/libs/libsodium/src/crypto_pwhash/argon2/blake2b-long.c +++ b/libs/libsodium/src/crypto_pwhash/argon2/blake2b-long.c @@ -1,79 +1,79 @@ -#include <limits.h> -#include <stdint.h> -#include <stdlib.h> -#include <string.h> - -#include "crypto_generichash_blake2b.h" -#include "private/common.h" -#include "utils.h" - -#include "blake2b-long.h" - -int -blake2b_long(void *pout, size_t outlen, const void *in, size_t inlen) -{ - uint8_t *out = (uint8_t *) pout; - crypto_generichash_blake2b_state blake_state; - uint8_t outlen_bytes[4 /* sizeof(uint32_t) */] = { 0 }; - int ret = -1; - - if (outlen > UINT32_MAX) { - goto fail; /* LCOV_EXCL_LINE */ - } - - /* Ensure little-endian byte order! */ - STORE32_LE(outlen_bytes, (uint32_t) outlen); - -#define TRY(statement) \ - do { \ - ret = statement; \ - if (ret < 0) { \ - goto fail; \ - } \ - } while ((void) 0, 0) - - if (outlen <= crypto_generichash_blake2b_BYTES_MAX) { - TRY(crypto_generichash_blake2b_init(&blake_state, NULL, 0U, outlen)); - TRY(crypto_generichash_blake2b_update(&blake_state, outlen_bytes, - sizeof(outlen_bytes))); - TRY(crypto_generichash_blake2b_update( - &blake_state, (const unsigned char *) in, inlen)); - TRY(crypto_generichash_blake2b_final(&blake_state, out, outlen)); - } else { - uint32_t toproduce; - uint8_t out_buffer[crypto_generichash_blake2b_BYTES_MAX]; - uint8_t in_buffer[crypto_generichash_blake2b_BYTES_MAX]; - TRY(crypto_generichash_blake2b_init( - &blake_state, NULL, 0U, crypto_generichash_blake2b_BYTES_MAX)); - TRY(crypto_generichash_blake2b_update(&blake_state, outlen_bytes, - sizeof(outlen_bytes))); - TRY(crypto_generichash_blake2b_update( - &blake_state, (const unsigned char *) in, inlen)); - TRY(crypto_generichash_blake2b_final( - &blake_state, out_buffer, crypto_generichash_blake2b_BYTES_MAX)); - memcpy(out, out_buffer, crypto_generichash_blake2b_BYTES_MAX / 2); - out += crypto_generichash_blake2b_BYTES_MAX / 2; - toproduce = - (uint32_t) outlen - crypto_generichash_blake2b_BYTES_MAX / 2; - - while (toproduce > crypto_generichash_blake2b_BYTES_MAX) { - memcpy(in_buffer, out_buffer, crypto_generichash_blake2b_BYTES_MAX); - TRY(crypto_generichash_blake2b( - out_buffer, crypto_generichash_blake2b_BYTES_MAX, in_buffer, - crypto_generichash_blake2b_BYTES_MAX, NULL, 0U)); - memcpy(out, out_buffer, crypto_generichash_blake2b_BYTES_MAX / 2); - out += crypto_generichash_blake2b_BYTES_MAX / 2; - toproduce -= crypto_generichash_blake2b_BYTES_MAX / 2; - } - - memcpy(in_buffer, out_buffer, crypto_generichash_blake2b_BYTES_MAX); - TRY(crypto_generichash_blake2b(out_buffer, toproduce, in_buffer, - crypto_generichash_blake2b_BYTES_MAX, - NULL, 0U)); - memcpy(out, out_buffer, toproduce); - } -fail: - sodium_memzero(&blake_state, sizeof(blake_state)); - return ret; -#undef TRY -} +#include <limits.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "crypto_generichash_blake2b.h"
+#include "private/common.h"
+#include "utils.h"
+
+#include "blake2b-long.h"
+
+int
+blake2b_long(void *pout, size_t outlen, const void *in, size_t inlen)
+{
+ uint8_t *out = (uint8_t *) pout;
+ crypto_generichash_blake2b_state blake_state;
+ uint8_t outlen_bytes[4 /* sizeof(uint32_t) */] = { 0 };
+ int ret = -1;
+
+ if (outlen > UINT32_MAX) {
+ goto fail; /* LCOV_EXCL_LINE */
+ }
+
+ /* Ensure little-endian byte order! */
+ STORE32_LE(outlen_bytes, (uint32_t) outlen);
+
+#define TRY(statement) \
+ do { \
+ ret = statement; \
+ if (ret < 0) { \
+ goto fail; \
+ } \
+ } while ((void) 0, 0)
+
+ if (outlen <= crypto_generichash_blake2b_BYTES_MAX) {
+ TRY(crypto_generichash_blake2b_init(&blake_state, NULL, 0U, outlen));
+ TRY(crypto_generichash_blake2b_update(&blake_state, outlen_bytes,
+ sizeof(outlen_bytes)));
+ TRY(crypto_generichash_blake2b_update(
+ &blake_state, (const unsigned char *) in, inlen));
+ TRY(crypto_generichash_blake2b_final(&blake_state, out, outlen));
+ } else {
+ uint32_t toproduce;
+ uint8_t out_buffer[crypto_generichash_blake2b_BYTES_MAX];
+ uint8_t in_buffer[crypto_generichash_blake2b_BYTES_MAX];
+ TRY(crypto_generichash_blake2b_init(
+ &blake_state, NULL, 0U, crypto_generichash_blake2b_BYTES_MAX));
+ TRY(crypto_generichash_blake2b_update(&blake_state, outlen_bytes,
+ sizeof(outlen_bytes)));
+ TRY(crypto_generichash_blake2b_update(
+ &blake_state, (const unsigned char *) in, inlen));
+ TRY(crypto_generichash_blake2b_final(
+ &blake_state, out_buffer, crypto_generichash_blake2b_BYTES_MAX));
+ memcpy(out, out_buffer, crypto_generichash_blake2b_BYTES_MAX / 2);
+ out += crypto_generichash_blake2b_BYTES_MAX / 2;
+ toproduce =
+ (uint32_t) outlen - crypto_generichash_blake2b_BYTES_MAX / 2;
+
+ while (toproduce > crypto_generichash_blake2b_BYTES_MAX) {
+ memcpy(in_buffer, out_buffer, crypto_generichash_blake2b_BYTES_MAX);
+ TRY(crypto_generichash_blake2b(
+ out_buffer, crypto_generichash_blake2b_BYTES_MAX, in_buffer,
+ crypto_generichash_blake2b_BYTES_MAX, NULL, 0U));
+ memcpy(out, out_buffer, crypto_generichash_blake2b_BYTES_MAX / 2);
+ out += crypto_generichash_blake2b_BYTES_MAX / 2;
+ toproduce -= crypto_generichash_blake2b_BYTES_MAX / 2;
+ }
+
+ memcpy(in_buffer, out_buffer, crypto_generichash_blake2b_BYTES_MAX);
+ TRY(crypto_generichash_blake2b(out_buffer, toproduce, in_buffer,
+ crypto_generichash_blake2b_BYTES_MAX,
+ NULL, 0U));
+ memcpy(out, out_buffer, toproduce);
+ }
+fail:
+ sodium_memzero(&blake_state, sizeof(blake_state));
+ return ret;
+#undef TRY
+}
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