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ima-evm-utils: Support SM2/3 algorithm for sign and verify

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Keep in sync with the kernel IMA, IMA signature tool supports SM2/3
algorithm combination. Because in the current version of OpenSSL 1.1.1,
the SM2 algorithm and the public key using the EC algorithm share the
same ID 'EVP_PKEY_EC', and the specific algorithm can only be
distinguished by the curve name used. This patch supports this feature.

Secondly, the openssl 1.1.1 tool does not fully support the signature
of SM2/3 algorithm combination, so the openssl3 tool is used in the
test case, and there is no this problem with directly calling the
openssl 1.1.1 API in evmctl.

Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
[zohar@linux.ibm.com: "COMPILE_SSL: " -> "COMPILE_SSL=" in .travis.yml
Reviewed-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
This commit is contained in:
Tianjia Zhang
2021-07-21 11:16:59 +08:00
committed by Mimi Zohar
parent 40621b2259
commit a5f5dd7c8e
7 changed files with 87 additions and 6 deletions
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10
tests/sign_verify.test
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@ -199,6 +199,10 @@ check_sign() {
# This is all we can do for evm.
[[ "$TYPE" =~ evm ]] && return "$OK"
# When using the SM2/3 algorithm, the openssl tool uses USERID for verify,
# which is incompatible with calling API directly, so skip it.
[[ "$ALG" == sm3 ]] && return "$OK"
# Extract signature to a file
_extract_xattr "$FILE" "$(_xattr "$TYPE")" "$FILE.sig2" "$PREFIX"
@ -390,6 +394,12 @@ sign_verify prime256v1 sha256 0x030204:K:004[345678]
sign_verify prime256v1 sha384 0x030205:K:004[345678]
sign_verify prime256v1 sha512 0x030206:K:004[345678]
# If openssl 3.0 is installed, test the SM2/3 algorithm combination
if [ -x /opt/openssl3/bin/openssl ]; then
PATH=/opt/openssl3/bin:$PATH LD_LIBRARY_PATH=/opt/openssl3/lib \
sign_verify sm2 sm3 0x030211:K:004[345678]
fi
# Test v2 signatures with EC-RDSA
_enable_gost_engine
sign_verify gost2012_256-A md_gost12_256 0x030212:K:0040