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Bug
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Resolution: Done-Errata
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Major
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None
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openssl-3.0.7-18.el9_2
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None
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None
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ZStream
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1
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rhel-sst-security-crypto
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ssg_security
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0.2
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False
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None
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Crypto24Q1
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Pass
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Not Needed
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RegressionOnly
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None
This is a clone of issue RHEL-15990 to use for version rhel-9.2.0.z
–
Original description:
From 56Arev3 the owner needs to gain assurance of the public key validity as mentioned in :
5.6.2.1 Assurances Required by the Key Pair Owner
Prior to the use of a static or ephemeral key pair in a key-establishment transaction, the keypair owner shall confirm the validity of the key pair by obtaining the following assurances:
...
Assurance of public-key validity – assurance that the public key has the correct
representation for a non-identity element of the correct cryptographic subgroup, as uniquely determined by the domain parameters (see Section 5.6.2.1.3 for the methods for obtaining this assurance).
This was further refined in a recent RFG by the CMVP stating that the ECDH key generation service shall include a call to the public key validation.
This is compliant for DH but not for ECDH where ec_generate_key() does not call ossl_ec_key_public_check().
A possible solution would be to add something like this similar to what was already done for DH in crypto/dh/dh_key.c:
#ifdef FIPS_MODULE if (DH_check_pub_key(dh, pub_key, &validate) <= 0) { ERR_raise(ERR_LIB_DH, DH_R_CHECK_PUBKEY_INVALID); goto err; } #endif
Something like this in ec_generate_key() :
#ifdef FIPS_MODULE if (ossl_ec_key_public_check(eckey, ctx) <= 0) { ERR_raise(ERR_LIB_EC, EC_R_INVALID_KEY); goto err; } #endif
- clones
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RHEL-15990 NIST SP 800-56Arev3 Section 5.6.2.1 - Missing ECDH Public Key Check
- Closed
- links to
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RHSA-2023:124380 openssl security and bug fix update
- mentioned on