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Adding a means to distinguish asymmetric algorithms.

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REDMOND\brodes
2025-04-28 11:33:37 -04:00
parent 1958c192ec
commit 28ccc83346
1 changed files with 13 additions and 0 deletions
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13
shared/cryptography/codeql/cryptography/Model.qll
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@@ -2122,6 +2122,12 @@ module CryptographyBase<LocationSig Location, InputSig<Location> Input> {
*/
KeyOpAlg::Algorithm getAlgorithmType() { result = instance.asAlg().getAlgorithmType() }
predicate isAsymmetric() {
this.getAlgorithmType() instanceof KeyOpAlg::TAsymmetricCipher
or
this.getAlgorithmType() instanceof KeyOpAlg::TSignature
}
/**
* Gets the mode of operation of this cipher, e.g., "GCM" or "CBC".
*/
@@ -2442,4 +2448,11 @@ module CryptographyBase<LocationSig Location, InputSig<Location> Input> {
location = this.getLocation()
}
}
predicate isAsymmetricAlgorithm(AlgorithmNode node) {
node instanceof EllipticCurveNode
or
node instanceof KeyOperationAlgorithmNode and node.(KeyOperationAlgorithmNode).isAsymmetric()
// TODO: get unknown algorithms from known asymmetric operations
}
}