[CRYPTO] tcrypt: Add CCM vectors

This patch adds 7 test vectors to tcrypt for CCM.
The test vectors are from rfc 3610.
There are about 10 more test vectors in RFC 3610
and 4 or 5 more in NIST. I can add these as time permits.

I also needed to set authsize. CCM has a prerequisite of
authsize. 

Signed-off-by: Joy Latten <latten@austin.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 29 insertions, 2 deletions

diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 1142b4998c84..2b52df7bf833 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -266,8 +266,6 @@ static void test_aead(char *algo, int enc, struct aead_testvec *template,
                 return;
         }
 
-        authsize = crypto_aead_authsize(tfm);
-
         req = aead_request_alloc(tfm, GFP_KERNEL);
         if (!req) {
                 printk(KERN_INFO "failed to allocate request for %s\n", algo);
@@ -298,6 +296,15 @@ static void test_aead(char *algo, int enc, struct aead_testvec *template,
                                         goto out;
                         }
 
+                        authsize = abs(aead_tv[i].rlen - aead_tv[i].ilen);
+                        ret = crypto_aead_setauthsize(tfm, authsize);
+                        if (ret) {
+                                printk(KERN_INFO
+                                       "failed to set authsize = %u\n",
+                                       authsize);
+                                goto out;
+                        }
+
                         sg_init_one(&sg[0], aead_tv[i].input,
                                     aead_tv[i].ilen + (enc ? authsize : 0));
 
@@ -374,6 +381,15 @@ static void test_aead(char *algo, int enc, struct aead_testvec *template,
                                            aead_tv[i].tap[k]);
                         }
 
+                        authsize = abs(aead_tv[i].rlen - aead_tv[i].ilen);
+                        ret = crypto_aead_setauthsize(tfm, authsize);
+                        if (ret) {
+                                printk(KERN_INFO
+                                       "failed to set authsize = %u\n",
+                                       authsize);
+                                goto out;
+                        }
+
                         if (enc)
                                 sg[k - 1].length += authsize;
 
@@ -1201,6 +1217,10 @@ static void do_test(void)
                           AES_GCM_ENC_TEST_VECTORS);
                 test_aead("gcm(aes)", DECRYPT, aes_gcm_dec_tv_template,
                           AES_GCM_DEC_TEST_VECTORS);
+                test_aead("ccm(aes)", ENCRYPT, aes_ccm_enc_tv_template,
+                          AES_CCM_ENC_TEST_VECTORS);
+                test_aead("ccm(aes)", DECRYPT, aes_ccm_dec_tv_template,
+                          AES_CCM_DEC_TEST_VECTORS);
 
                 //CAST5
                 test_cipher("ecb(cast5)", ENCRYPT, cast5_enc_tv_template,
@@ -1557,6 +1577,13 @@ static void do_test(void)
                           LZO_COMP_TEST_VECTORS, LZO_DECOMP_TEST_VECTORS);
                 break;
 
+        case 37:
+                test_aead("ccm(aes)", ENCRYPT, aes_ccm_enc_tv_template,
+                          AES_CCM_ENC_TEST_VECTORS);
+                test_aead("ccm(aes)", DECRYPT, aes_ccm_dec_tv_template,
+                          AES_CCM_DEC_TEST_VECTORS);
+                break;
+
         case 100:
                 test_hash("hmac(md5)", hmac_md5_tv_template,
                           HMAC_MD5_TEST_VECTORS);