* Makefile.in (nettle_SOURCES): Added sha384-meta.c.

* sha384-meta.c: New file.

* sha.h: Added declarations for sha384. Some are aliases for the
corresponding sha512 definition.

* sha512.c (sha512_write_digest): New function.
(sha512_digest): Use it.
(sha384_init): New function.
(sha384_digest): New function.

Rev: nettle/ChangeLog:1.59
Rev: nettle/Makefile.in:1.19
Rev: nettle/nettle-meta.h:1.4
Rev: nettle/sha.h:1.5
Rev: nettle/sha384-meta.c:1.1
Rev: nettle/sha512.c:1.4

1 files changed, 20 insertions, 0 deletions

diff --git a/sha.h b/sha.h
index cf4743e6..5dbffd7e 100644
--- a/sha.h
+++ b/sha.h
@@ -39,6 +39,8 @@ extern "C" {
 #define sha256_init nettle_sha256_init
 #define sha256_update nettle_sha256_update
 #define sha256_digest nettle_sha256_digest
+#define sha384_init nettle_sha384_init
+#define sha384_digest nettle_sha384_digest
 #define sha512_init nettle_sha512_init
 #define sha512_update nettle_sha512_update
 #define sha512_digest nettle_sha512_digest
@@ -147,6 +149,24 @@ sha512_digest(struct sha512_ctx *ctx,
 void
 _nettle_sha512_compress(uint64_t *state, const uint8_t *data, const uint64_t *k);
 
+/* SHA384. */
+/* This is the same algorithm as SHA512, but with different initial
+   state and truncated output. */
+
+#define SHA384_DIGEST_SIZE 48
+#define SHA384_DATA_SIZE SHA512_DATA_SIZE
+#define sha384_ctx sha512_ctx
+
+void
+sha384_init(struct sha512_ctx *ctx);
+
+#define sha384_update nettle_sha512_update
+
+void
+sha384_digest(struct sha512_ctx *ctx,
+	      unsigned length,
+	      uint8_t *digest);
+
 #ifdef __cplusplus
 }
 #endif