1 files changed, 26 insertions, 0 deletions
diff --git a/util/sbase/libutil/sha512-224.c b/util/sbase/libutil/sha512-224.c
new file mode 100644
index 00000000..a5636c13
--- /dev/null
+++ b/util/sbase/libutil/sha512-224.c
@@ -0,0 +1,26 @@
+/* public domain sha512/224 implementation based on fips180-3 */
+#include <stdint.h>
+#include "../sha512-224.h"
+
+extern void sha512_sum_n(void *, uint8_t *, int n);
+
+void
+sha512_224_init(void *ctx)
+{
+	struct sha512_224 *s = ctx;
+	s->len = 0;
+	s->h[0] = 0x8c3d37c819544da2ULL;
+	s->h[1] = 0x73e1996689dcd4d6ULL;
+	s->h[2] = 0x1dfab7ae32ff9c82ULL;
+	s->h[3] = 0x679dd514582f9fcfULL;
+	s->h[4] = 0x0f6d2b697bd44da8ULL;
+	s->h[5] = 0x77e36f7304c48942ULL;
+	s->h[6] = 0x3f9d85a86a1d36c8ULL;
+	s->h[7] = 0x1112e6ad91d692a1ULL;
+}
+
+void
+sha512_224_sum(void *ctx, uint8_t md[SHA512_224_DIGEST_LENGTH])
+{
+	sha512_sum_n(ctx, md, 4);
+}