mirror of
https://github.com/pgpainless/pgpainless.git
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Reject data signatures made by non-signing primary key
This commit is contained in:
parent
741d72eadc
commit
a6f3a223b1
2 changed files with 240 additions and 1 deletions
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@ -169,6 +169,17 @@ class CertificateValidator {
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return true
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return true
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}
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}
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}
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}
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// Reject sigs by non-signing keys
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if (userIdSignatures.none { (_, sigs) ->
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sigs.any {
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SignatureSubpacketsUtil.getKeyFlags(it)?.let { f ->
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KeyFlag.hasKeyFlag(f.flags, KeyFlag.SIGN_DATA)
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} == true
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}
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}) {
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throw SignatureValidationException(
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"Signature was generated by non-signing key.")
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}
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} else { // signing key is subkey
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} else { // signing key is subkey
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val subkeySigs = mutableListOf<PGPSignature>()
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val subkeySigs = mutableListOf<PGPSignature>()
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signingSubkey
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signingSubkey
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@ -183,7 +194,7 @@ class CertificateValidator {
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}
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}
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} catch (e: SignatureValidationException) {
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} catch (e: SignatureValidationException) {
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rejections[it] = e
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rejections[it] = e
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LOGGER.debug("REjecting subkey revocation signature: ${e.message}", e)
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LOGGER.debug("Rejecting subkey revocation signature: ${e.message}", e)
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}
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}
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}
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}
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@ -0,0 +1,228 @@
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// SPDX-FileCopyrightText: 2024 Paul Schaub <vanitasvitae@fsfe.org>
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//
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// SPDX-License-Identifier: Apache-2.0
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package org.pgpainless.decryption_verification;
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import org.bouncycastle.openpgp.PGPSecretKeyRing;
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import org.bouncycastle.util.io.Streams;
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import org.junit.jupiter.api.Test;
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import org.pgpainless.PGPainless;
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import java.io.ByteArrayInputStream;
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import java.nio.charset.StandardCharsets;
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import static org.junit.jupiter.api.Assertions.assertFalse;
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public class VerifySignatureByCertificationKeyFailsTest {
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// Key with non-signing primary key and dedicated signing subkey
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private static final String KEY = "-----BEGIN PGP PRIVATE KEY BLOCK-----\n" +
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"Version: PGPainless\n" +
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"Comment: ACFC 7FFA 02BE C1E8 5002 2D35 AFE4 67B2 9A41 A0CE\n" +
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"Comment: Complex RSA <test@test.test>\n" +
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"\n" +
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||||||
|
"sYMbcPPpcymCPJKyzx2DHFryHRS7YzoRHb8Apmlat8ceervNTPzErznsN1LljEA7\n" +
|
||||||
|
"qhghWgkCrpApTGOESpwcoGli6m62tDZvLzpIJhHK3yan6nC7VcQ09FHdMJc+762Q\n" +
|
||||||
|
"ZxPbtZalnCrxrh22F1KcJwMYBo+PeOXueL3fCiPGImEe2DT1SIV8wmO5yCffxGoF\n" +
|
||||||
|
"ylGotT6HrGQPseB8yo0WycVs9PIhyLPc1D6SVerLQn34ru0DxuXX2P6x0UvXxH74\n" +
|
||||||
|
"z2VCGj78oBv2lguy47d3IEllWhFTJUHyH+KR7gUQlH4f4S0/drqH0s9oLl/xGUET\n" +
|
||||||
|
"9IHDK/aPh57DTdpyNur/75cty8f94ScmwclYB7L+z1wMMDe3qA9GhVG9UvL1s8oz\n" +
|
||||||
|
"OQ4T1XwKMf5a4obCkOoyV7B41RdwaKHYVkDGcqvVbQJRQGpyE8fzqFakjjdVN0SN\n" +
|
||||||
|
"diyJvSrr60QeUdnykTmQRZK+hajAz0hKSHT9L9bhgwfMUDd8SwM8D/shHgvVffGd\n" +
|
||||||
|
"BxgEZhAGGAEQALcxdafRMdeNOF21Z6AFLIJ4jcsPcgsJ1sTpMHHJCGBfHB5iE5VF\n" +
|
||||||
|
"LbCYKMES1mhe58JsY2KLDj/9YgzJKfO4tn9SXVWmMCOsVoa9N0OH0H2/QxcipjCt\n" +
|
||||||
|
"LNFg1nOYVSq47TmgAMC+NnAMPYBh0MlZrr++Z4WFxNxKukNmvlO2JGRTMm+p/6qr\n" +
|
||||||
|
"zhXyBaVxI2ZW6wqg79JAFKfC7v2b8Zfp7t2ehlRQ0gweHLOFBjIhaZatk93J9pF4\n" +
|
||||||
|
"epzI6CuBLMwoFKmj/bVbrZPPUabe8vMJt/sZjxQzzfKLnHVRfihs7InFGaf6wgxF\n" +
|
||||||
|
"7cDDA5/x0/wsmOlOaxyt5nInJnMLdUzmIBVu95YjAaBFejF8t9JzhOgDXQ/A7Zx0\n" +
|
||||||
|
"EQHDF56FYvIcHVjUCJ4qeLJYCWMNAHBkUbyCltMJnFB+aYc28eOQW6fHBczo+jmr\n" +
|
||||||
|
"HNjsg+1RWal1ZijzAmCN1aAHY9DPvUZklLn/qpk9EtpI6hLRP94sbbr1bJzibBi9\n" +
|
||||||
|
"mEvsL8TwhpEqwc+HIGqnvVQHqb1mVEmcGVdhiqmNFe94lyYkv7BWim5mu6b62Dkl\n" +
|
||||||
|
"wTAcpAowYzqkZ9UXqBlHMGqrFqtSvT6PBh+s7ZCd1/ueACV5bM9G9lU5DRZOcuAS\n" +
|
||||||
|
"dM0TI6a04PEziV1npOFxcnx+sZApDZ8Rqpa7nkZXsKmxhRoupUi4neAFABEBAAEA\n" +
|
||||||
|
"D/4//TrHv77VODL0KKVls+j0Of/tahu/11P5vCp71GjkoNRFmKSWg2+OO9ggeOAD\n" +
|
||||||
|
"3QK/WvTsOv5jQ7K4HJxW0bKNjsujW0V9cHlY30cqg4pEIkbhEe1TG2qISHcgMZmu\n" +
|
||||||
|
"LqJOeqFIsih5wwzIh2JSsszjlTK75Rn6iO+/E2hv/TOBB76aWps/lnuKFtv6Cib/\n" +
|
||||||
|
"XGUFdWnP2ypb3y9zzsD4+3HAX9s0IHb+XJZR7qlXYWxsgX0g/6bs8VSC53qRl7F6\n" +
|
||||||
|
"LpXpG6tHahqbgtNWopHiawak4yyjNeU+T537LNgQbtvA0+Q+VMzrVJHTv0rI18Pg\n" +
|
||||||
|
"VgOjmwy3G9dfEGXR0bLLhaa2vfvBA54yXTfIN8qn6iJctxRucfJEEYWWIcdXQNmv\n" +
|
||||||
|
"aD2Ozz0IzDDSMyyZiAibhuoOOL4izinFX9O7AxVEkIf3+IHloxjuT6LSllNOO8ZB\n" +
|
||||||
|
"xKsyeLFgIjQFXjY4sR+JleML+YkCq46NdHVmbb6TryDelkduqCHOk2PGvdv/1zrf\n" +
|
||||||
|
"yTRMWQLx80Urd4rOKxNOnqwblj6yt1eOINXA31GkJSIEOkkLdFOZ/H7zp+UqbGE/\n" +
|
||||||
|
"4nGh/JzBur/jTLIx9ElsrV3lLGEtUa47mgbMYAXIIL2RR+LMlT4JoO3SQXEuvkok\n" +
|
||||||
|
"RT7NpyoVTWHYlQiR0XruCt4bvWaEVCdiNj565yI7pqPzkQgAxZ5tKTPW+8uHOQSh\n" +
|
||||||
|
"NuY9Ok2bUcaNvzboOu7t3c9rETf5/XBAjcmjNSxlDLLiZv9Qp3DhcnXu45ZDSh86\n" +
|
||||||
|
"Sd+o9NlQLTAs/J98rRExDISj42V3q740Hf8jXS3lz4fwlr3YHeV0c1A+YsIoY5nb\n" +
|
||||||
|
"Bs2UHO5nX1PgtE17Bgbt1+Y3jamK/2+W7WDAiIq7G4uRpeORqrXsjWZDuIaKR03C\n" +
|
||||||
|
"lxj1c7LqkFUjVpY47mdlBDuXmra7slcYVdabR5oULpRvloAjp+VX3Yfwzl0/I0o6\n" +
|
||||||
|
"/3WZTRhM4PhkP4imkveykv/BkIDFWfho3pJScru8Aqn3XbccrZO8WY6nONzvYIr+\n" +
|
||||||
|
"COgWpwgA7VALxeELI7nJiWeZUZ5HBHOMKQFTdioKD9BgwvEPDOXq+VqAT2n3basQ\n" +
|
||||||
|
"ShYjCot8gnxe3ei+/KQs/a8DkZVDY7XKMqhZyvidxF6weFAbO4Z+sB6LfyJmz5D1\n" +
|
||||||
|
"nA0iv8laP6at1wgn1MSfpXZm1cXuUHDpyTqWXLxG1qbUpQJS27fl6F0ws1k8Qvno\n" +
|
||||||
|
"PLjGbsbEeujbWU2lqZDs3L72e/arIpHdO94LNOwSKrGjO1KTkGgue+uGm1u17gEZ\n" +
|
||||||
|
"3U+rbCvG2lTq7kHZEQHiGaIygxyDJAyIvroPZ9c5nABLGMoH93Pq9tGX2OPxyWLx\n" +
|
||||||
|
"P1db87EzKRQjFGmZSeeKENRvLYAVcwgAqZTCPD9CkUG6O//rZI/1pPArhN8CY/+x\n" +
|
||||||
|
"8L2jksvaTLimdBzXyVXlNAPIynMih/QaxNq+WNOmnihVFAw7ur/nmN9Oea33Ue7v\n" +
|
||||||
|
"6Ryrz9nzi6GonLz0/grzB5XWAiO3+i9WUdVpeTgjlFPXSJsbOjEVRAB2W0heioeM\n" +
|
||||||
|
"M6weKP8i2O+GF3ULoWzmam4EgsanaSCXgDq1RYXyJhfUYTikVqrD+qJYT0asxU0H\n" +
|
||||||
|
"S92KmdZ6UKLOTPZdrIL5X0Cj/ejBX/94xHLM0GfXT9CIHTVIVSa2poSbWhN0O+yT\n" +
|
||||||
|
"NMySr7OHGDUjEUqBL2O5Wm3oyMK/5EoSQ9YJBCrkbkymvoahjrooXZSeiQIzBBgB\n" +
|
||||||
|
"CgAdBQJmEAYYAp4BApsMBRYCAwEABAsJCAcFFQoJCAsACgkQr+RnsppBoM7gBQ//\n" +
|
||||||
|
"YGQ6suANXV0C7TvofcMwubahLriBiWGAkI+pNQ7Tmzgql4ALcf4BFsDffcTCy3ue\n" +
|
||||||
|
"dLAZkEEwT86Ip1qW7mKCN1tScj0g8uU8U78oVShqoyEq0ebemaVmY7gvFWCpGXgr\n" +
|
||||||
|
"JgNjL4QzRbwzKUdvIkTMmUDiPqhmGuCFV76pazzTmhI/RAzVfnroG0kVDVwODlCI\n" +
|
||||||
|
"CcswoEOI32v+B8SJbbsXXQ4E6jrDwPIUV/z54VERbi+JcKaes0a/rOLF0FOnoTFs\n" +
|
||||||
|
"2b2aqt+Knj/RQCP9r3UNl06dONBMaydkhFmMjRjenQb6p+91JyNkXJ6tgD4CDbps\n" +
|
||||||
|
"2kqryCpZf39E0QU75Rvuofc8vhSRbRvSl7D+NhOdk9c6EEOJPbtozaG+/l8g1K42\n" +
|
||||||
|
"aMT+TvccBPK0b4EcZtAyCLjDg0eA/GN5+DIhBQCQA4y4KdEf3IMoS+BeEPBNfNyG\n" +
|
||||||
|
"isVD/f/R/68uGg6S9sKFXOCAXO0rnVIu1Oe123l09FsXVZpFDV3PMbpk7Sxh/20L\n" +
|
||||||
|
"ERTp5jBV+2J2szmYYxcSfVl6h+P3k8Y8l4evEoPPL6Skz9uZI5C3UB1c6dnWBcRm\n" +
|
||||||
|
"G759QEMpJuvyuwFZkcoGxfVvtneZsTGajEnNOB4o46hb9a5DLJ9tc06zG+j+eUeR\n" +
|
||||||
|
"C6mwvn/JYRaGr9uG4zpdxNeFmQ80yitmGGllHenjfaU=\n" +
|
||||||
|
"=hhYV\n" +
|
||||||
|
"-----END PGP PRIVATE KEY BLOCK-----\n";
|
||||||
|
|
||||||
|
private static byte[] DATA = "Hello, World!".getBytes(StandardCharsets.UTF_8);
|
||||||
|
|
||||||
|
// Signature by primary key (shall be rejected, as the primary key is not signing capable.
|
||||||
|
// We instead expect the signing subkey to sign).
|
||||||
|
private static final String SIG = "-----BEGIN PGP SIGNATURE-----\n" +
|
||||||
|
"Version: PGPainless\n" +
|
||||||
|
"\n" +
|
||||||
|
"iQIcBAABCAAGBQJmEAYYAAoJEK/kZ7KaQaDOH4MP/2kaK8lQaBU+jChpWPLR2R2+\n" +
|
||||||
|
"dB7j29tFPRAqbzbazxaF+jZQxuuHWtM3bwd9Vdta9zirDc27b7XyufFLBza4Bn+R\n" +
|
||||||
|
"7fT7uHTQQts/zaX8YGxJ90rb06toFXiv/rlm531kLaGXxlACU6SpI8maqpP4im+G\n" +
|
||||||
|
"W0LgBDZiT9udFs3eeJZ8O3yDLP29Rdw8sHPa6pOyyhkkhsvo0bNaBaSt6GDW5UK9\n" +
|
||||||
|
"f5Gz+XF9ZLJgsNqQwWQM55+4ZhdkfEszRcJgAhuSCamk+ZLfvIPhEu21/7weNq3c\n" +
|
||||||
|
"Yp0hvaz27gaW7IkjEgI1FqkPrmJmyk5SVMMvaev9p0WXDgUIeDLI6CwvoXaoMCAX\n" +
|
||||||
|
"pg0Q754ccHu2pELwNb5YIxGSPSMXRVH8xUDqicZpl/50ucy3g348s5HekcVnzBtX\n" +
|
||||||
|
"UKVX3tU6r5HrkVAX7bDGht3WXE1jRE98W3uKpFWzrJBK+uQIyOtOEXeKT+z1BbNy\n" +
|
||||||
|
"CvYeDq4xjpGYB2tJY2LKXrC4+IzJ56e3XU2t75KhO0SBV+Ax1bJ0MBnmAedg0pg5\n" +
|
||||||
|
"0r+mknBqoYu+OHNwMS/N+YH1iZEV0QxP+ldLp+ff2QiIvtiDcOIQ0oNEJy0bqh0p\n" +
|
||||||
|
"TrS9PKMl+kH+FaAPUVb0ruviTd/zPljjiJ2P396bu1JBXdoncn2y4KklQOWHJSVI\n" +
|
||||||
|
"F5ZjatEBixl6pdW7I5Cr\n" +
|
||||||
|
"=vPG/\n" +
|
||||||
|
"-----END PGP SIGNATURE-----";
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void testSignatureByNonSigningPrimaryKeyIsRejected() throws Exception {
|
||||||
|
PGPSecretKeyRing key = PGPainless.readKeyRing().secretKeyRing(KEY);
|
||||||
|
|
||||||
|
DecryptionStream verifier = PGPainless.decryptAndOrVerify()
|
||||||
|
.onInputStream(new ByteArrayInputStream(DATA))
|
||||||
|
.withOptions(ConsumerOptions.get()
|
||||||
|
.addVerificationCert(PGPainless.extractCertificate(key))
|
||||||
|
.addVerificationOfDetachedSignatures(new ByteArrayInputStream(SIG.getBytes(StandardCharsets.UTF_8))));
|
||||||
|
|
||||||
|
Streams.drain(verifier);
|
||||||
|
verifier.close();
|
||||||
|
|
||||||
|
MessageMetadata result = verifier.getMetadata();
|
||||||
|
assertFalse(result.isVerifiedSigned());
|
||||||
|
}
|
||||||
|
}
|
Loading…
Reference in a new issue