Introduce hash2 (sha256).

[paraslash.git] / crypt_common.c

diff --git a/crypt_common.c b/crypt_common.c
index ff24e356ab8d837f8d59d67a3c983d5264376db1..3a44dbdddcd1cf59108ba110c8d83c4fac11d609 100644 (file)
--- a/crypt_common.c
+++ b/crypt_common.c
@@ -160,6 +160,31 @@ int hash_compare(const unsigned char *h1, const unsigned char *h2)
        return 0;
 }
 
+void hash2_to_asc(const unsigned char *hash, char *asc)
+{
+       int i;
+       const char hexchar[] = "0123456789abcdef";
+
+       for (i = 0; i < HASH2_SIZE; i++) {
+               asc[2 * i] = hexchar[hash[i] >> 4];
+               asc[2 * i + 1] = hexchar[hash[i] & 0xf];
+       }
+       asc[2 * HASH2_SIZE] = '\0';
+}
+
+int hash2_compare(const unsigned char *h1, const unsigned char *h2)
+{
+       int i;
+
+       for (i = 0; i < HASH2_SIZE; i++) {
+               if (h1[i] < h2[i])
+                       return -1;
+               if (h1[i] > h2[i])
+                       return 1;
+       }
+       return 0;
+}
+
 /**
  * Check header of an openssh private key and compute bignum offset.
  *