tweak tomcrypt

[pam_pcsc_cr.git] / tom_crypto.c

diff --git a/tom_crypto.c b/tom_crypto.c
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..79bd2023f800cc15d694d605a1e8f718b21c9b29 100644 (file)
--- a/tom_crypto.c
+++ b/tom_crypto.c
@@ -0,0 +1,47 @@
+#include <tomcrypt.h>
+
+#include "crypto_if.h"
+
+static int tom_encrypt(void *pt, int ptlen, void *key, int keylen,
+                       void *ct, int *ctlen)
+{
+       symmetric_CBC cbc;
+       unsigned char iv[16] = {0};
+       int index, err;
+
+       if ((index = register_cipher(&aes_desc)) == -1) return -1;
+       // if ((index = find_cipher("aes")) == -1) return -1;
+       // cipher = cipher_descriptor[index];
+       if ((err = cbc_start(index, iv, key, keylen, 0, &cbc)) != CRYPT_OK)
+               return err;
+       if ((err = cbc_encrypt(pt, ct, ptlen, &cbc)) != CRYPT_OK)
+               return err;
+       if ((err = cbc_done(&cbc)) != CRYPT_OK)
+               return err;
+       if ((err = unregister_cipher(&aes_desc)) != CRYPT_OK)
+               return err;
+       return 0;
+}
+
+static int tom_decrypt()
+{
+       return 0;
+}
+
+static int tom_hash()
+{
+       return 0;
+}
+
+static int tom_hmac()
+{
+       return 0;
+}
+
+struct crypto_interface tom_crypto_if = {
+       .name           = "tomcrypt",
+       .encrypt        = tom_encrypt,
+       .decrypt        = tom_decrypt,
+       .hash           = tom_hash,
+       .hmac           = tom_hmac,
+};