Add infrastructure to tcrypt to support handling ccm decryption test
vectors that are expected to fail verification.
Signed-off-by: Jarod Wilson <jarod@xxxxxxxxxx>
---
crypto/testmgr.c | 32 ++++++++++++++++++++++++++++++++
crypto/testmgr.h | 1 +
2 files changed, 33 insertions(+), 0 deletions(-)
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index a8bdcb3..92f4df0 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -373,6 +373,16 @@ static int test_aead(struct crypto_aead *tfm, int enc,
switch (ret) {
case 0:
+ if (template[i].novrfy) {
+ /* verification was supposed to fail */
+ printk(KERN_ERR "alg: aead: %s failed "
+ "on test %d for %s: ret was 0, "
+ "expected -EBADMSG\n",
+ e, j, algo);
+ /* so really, we got a bad message */
+ ret = -EBADMSG;
+ goto out;
+ }
break;
case -EINPROGRESS:
case -EBUSY:
@@ -382,6 +392,10 @@ static int test_aead(struct crypto_aead *tfm, int enc,
INIT_COMPLETION(result.completion);
break;
}
+ case -EBADMSG:
+ if (template[i].novrfy)
+ /* verification failure was expected */
+ goto next_aead_vector;
/* fall through */
default:
printk(KERN_ERR "alg: aead: %s failed on test "
@@ -398,6 +412,8 @@ static int test_aead(struct crypto_aead *tfm, int enc,
goto out;
}
}
+next_aead_vector:
+ continue;
}
for (i = 0, j = 0; i < tcount; i++) {
@@ -491,6 +507,16 @@ static int test_aead(struct crypto_aead *tfm, int enc,
switch (ret) {
case 0:
+ if (template[i].novrfy) {
+ /* verification was supposed to fail */
+ printk(KERN_ERR "alg: aead: %s failed "
+ "on chunk test %d for %s: ret "
+ "was 0, expected -EBADMSG\n",
+ e, j, algo);
+ /* so really, we got a bad message */
+ ret = -EBADMSG;
+ goto out;
+ }
break;
case -EINPROGRESS:
case -EBUSY:
@@ -500,6 +526,10 @@ static int test_aead(struct crypto_aead *tfm, int enc,
INIT_COMPLETION(result.completion);
break;
}
+ case -EBADMSG:
+ if (template[i].novrfy)
+ /* verification failure was expected */
+ goto next_aead_chunk_vector;
/* fall through */
default:
printk(KERN_ERR "alg: aead: %s failed on "
@@ -550,6 +580,8 @@ static int test_aead(struct crypto_aead *tfm, int enc,
temp += template[i].tap[k];
}
}
+next_aead_chunk_vector:
+ continue;
}
ret = 0;
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index 526f00a..b77b61d 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -62,6 +62,7 @@ struct aead_testvec {
int np;
int anp;
unsigned char fail;
+ unsigned char novrfy; /* ccm dec verification failure expected */
unsigned char wk; /* weak key flag */
unsigned char klen;
unsigned short ilen;
--
1.6.2.2
--
Jarod Wilson
jarod@xxxxxxxxxx
--
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