[PATCH] crypto: Fix incorrect values in PKCS#1 test vector

[PATCH] crypto: Fix incorrect values in PKCS#1 test vector

[Mcloughlin, Conor]

The RSA private key for the first form should have
version, prime1, prime2, exponent1, exponent2, coefficient
values 0.
With non-zero values for prime1,2, exponent 1,2 and coefficient
the Intel QAT driver will assume that values are provided for the
private key second form. This will result in signature verification
failures for modules where QAT device is present and the modules
are signed with rsa,sha256.

Cc: <stable@vger.kernel.org>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Conor McLoughlin <conor.mcloughlin@intel.com>
---
 crypto/testmgr.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index 6044f69..69fb51e 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -548,7 +548,7 @@ struct kpp_testvec {
 static const struct akcipher_testvec pkcs1pad_rsa_tv_template[] = {
 	{
 	.key =
-	"\x30\x82\x03\x1f\x02\x01\x10\x02\x82\x01\x01\x00\xd7\x1e\x77\x82"
+	"\x30\x82\x03\x1f\x02\x01\x00\x02\x82\x01\x01\x00\xd7\x1e\x77\x82"
 	"\x8c\x92\x31\xe7\x69\x02\xa2\xd5\x5c\x78\xde\xa2\x0c\x8f\xfe\x28"
 	"\x59\x31\xdf\x40\x9c\x60\x61\x06\xb9\x2f\x62\x40\x80\x76\xcb\x67"
 	"\x4a\xb5\x59\x56\x69\x17\x07\xfa\xf9\x4c\xbd\x6c\x37\x7a\x46\x7d"
@@ -597,8 +597,8 @@ struct kpp_testvec {
 	"\xfe\xf8\x27\x1b\xd6\x55\x60\x5e\x48\xb7\x6d\x9a\xa8\x37\xf9\x7a"
 	"\xde\x1b\xcd\x5d\x1a\x30\xd4\xe9\x9e\x5b\x3c\x15\xf8\x9c\x1f\xda"
 	"\xd1\x86\x48\x55\xce\x83\xee\x8e\x51\xc7\xde\x32\x12\x47\x7d\x46"
-	"\xb8\x35\xdf\x41\x02\x01\x30\x02\x01\x30\x02\x01\x30\x02\x01\x30"
-	"\x02\x01\x30",
+	"\xb8\x35\xdf\x41\x02\x01\x00\x02\x01\x00\x02\x01\x00\x02\x01\x00"
+	"\x02\x01\x00",
 	.key_len = 804,
 	/*
 	 * m is SHA256 hash of following message:
-- 
1.9.1


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Re: [PATCH] crypto: Fix incorrect values in PKCS#1 test vector

[Stephan Mueller]

Am Dienstag, 13. Februar 2018, 09:29:56 CET schrieb Mcloughlin, Conor:

Hi Conor,

> The RSA private key for the first form should have
> version, prime1, prime2, exponent1, exponent2, coefficient
> values 0.
> With non-zero values for prime1,2, exponent 1,2 and coefficient
> the Intel QAT driver will assume that values are provided for the
> private key second form. This will result in signature verification
> failures for modules where QAT device is present and the modules
> are signed with rsa,sha256.
> 
> Cc: <stable@vger.kernel.org>
> Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
> Signed-off-by: Conor McLoughlin <conor.mcloughlin@intel.com>

Reviewed-by: Stephan Mueller <smueller@chronox.de>

Ciao
Stephan