ta: pkcs11: fix CKM_RSA_X_509 signature size verification #7179
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When using raw RSA decryption to generate a raw RSA signature, the decrypted message (that is our generated signature) may be shorter than required since RSA may have stripped out leading zero bytes. Fix the PKCS#11 TA implementation to insert them back to reach the target signature size. Fixes: e02f17f ("ta: pkcs11: add CKM_RSA_X_509 authentication") Signed-off-by: Etienne Carriere <[email protected]>
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When using raw RSA decryption to generate a raw RSA signature, the decrypted message (that is our generated signature) may be shorter than required since RSA may have stripped out leading zero bytes. Fix the PKCS#11 TA implementation to insert them back to reach the target signature size.
Fixes: e02f17f ("ta: pkcs11: add CKM_RSA_X_509 authentication")