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Add PGPainless.asciiArmor(PGPSignature)

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This commit is contained in:
Paul Schaub 2022-09-27 16:28:31 +02:00
parent dac059c702
commit d74a8d0408
Signed by: vanitasvitae
GPG key ID: 62BEE9264BF17311
3 changed files with 64 additions and 0 deletions
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15
pgpainless-core/src/main/java/org/pgpainless/PGPainless.java
View file

@ -14,6 +14,7 @@ import org.bouncycastle.openpgp.PGPException;
import org.bouncycastle.openpgp.PGPKeyRing;
import org.bouncycastle.openpgp.PGPPublicKeyRing;
import org.bouncycastle.openpgp.PGPSecretKeyRing;
import org.bouncycastle.openpgp.PGPSignature;
import org.pgpainless.decryption_verification.DecryptionBuilder;
import org.pgpainless.decryption_verification.DecryptionStream;
import org.pgpainless.encryption_signing.EncryptionBuilder;
@ -27,6 +28,7 @@ import org.pgpainless.key.modification.secretkeyring.SecretKeyRingEditorInterfac
import org.pgpainless.key.parsing.KeyRingReader;
import org.pgpainless.key.util.KeyRingUtils;
import org.pgpainless.policy.Policy;
import org.pgpainless.signature.SignatureUtils;
import org.pgpainless.util.ArmorUtils;
public final class PGPainless {
@ -102,6 +104,19 @@ public final class PGPainless {
}
}
/**
* Wrap the detached signature in ASCII armor.
*
* @param signature detached signature
* @return ascii armored string
*
* @throws IOException in case of an error in the {@link ArmoredOutputStream}
*/
public static String asciiArmor(@Nonnull PGPSignature signature)
throws IOException {
return ArmorUtils.toAsciiArmoredString(signature);
}
/**
* Wrap a key of certificate in ASCII armor and write the result into the given {@link OutputStream}.
*

32
pgpainless-core/src/main/java/org/pgpainless/util/ArmorUtils.java
View file

@ -156,6 +156,38 @@ public final class ArmorUtils {
return sb.toString();
}
/**
* Return the ASCII armored representation of the given detached signature.
* The signature will not be stripped of non-exportable subpackets or trust-packets.
* If you need to strip those (e.g. because the signature is intended to be sent to a third party), use
* {@link #toAsciiArmoredString(PGPSignature, boolean)} and provide <pre>true</pre> as boolean value.
*
* @param signature signature
* @return ascii armored string
*
* @throws IOException in case of an error in the {@link ArmoredOutputStream}
*/
@Nonnull
public static String toAsciiArmoredString(@Nonnull PGPSignature signature) throws IOException {
return toAsciiArmoredString(signature, false);
}
/**
* Return the ASCII armored representation of the given detached signature.
* If <pre>export</pre> is true, the signature will be stripped of non-exportable subpackets or trust-packets.
* If it is <pre>false</pre>, the signature will be encoded as-is.
*
* @param signature signature
* @return ascii armored string
*
* @throws IOException in case of an error in the {@link ArmoredOutputStream}
*/
@Nonnull
public static String toAsciiArmoredString(@Nonnull PGPSignature signature, boolean export)
throws IOException {
return toAsciiArmoredString(signature.getEncoded(export));
}
/**
* Return the ASCII armored encoding of the given OpenPGP data bytes.
*

17
pgpainless-core/src/test/java/org/pgpainless/util/ArmorUtilsTest.java
View file

@ -24,6 +24,7 @@ import org.bouncycastle.openpgp.PGPObjectFactory;
import org.bouncycastle.openpgp.PGPPublicKey;
import org.bouncycastle.openpgp.PGPPublicKeyRing;
import org.bouncycastle.openpgp.PGPSecretKeyRing;
import org.bouncycastle.openpgp.PGPSignature;
import org.bouncycastle.openpgp.PGPUtil;
import org.bouncycastle.util.io.Streams;
import org.junit.jupiter.api.AfterAll;
@ -39,6 +40,7 @@ import org.pgpainless.key.TestKeys;
import org.pgpainless.key.generation.KeySpec;
import org.pgpainless.key.generation.type.ecc.EllipticCurve;
import org.pgpainless.key.generation.type.ecc.ecdsa.ECDSA;
import org.pgpainless.signature.SignatureUtils;
public class ArmorUtilsTest {
@ -128,6 +130,21 @@ public class ArmorUtilsTest {
assertTrue(ascii.startsWith("-----BEGIN PGP PRIVATE KEY BLOCK-----\n"));
}
@Test
public void signatureToAsciiArmoredString() throws PGPException, IOException {
String SIG = "-----BEGIN PGP SIGNATURE-----\n" +
"Version: PGPainless\n" +
"\n" +
"iHUEARMKAB0WIQRPZlxNwsRmC8ZCXkFXNuaTGs83DAUCYJ/x5gAKCRBXNuaTGs83\n" +
"DFRwAP9/4wMvV3WcX59Clo7mkRce6iwW3VBdiN+yMu3tjmHB2wD/RfE28Q1v4+eo\n" +
"ySNgbyvqYYsNr0fnBwaG3aaj+u5ExiE=\n" +
"=Z2SO\n" +
"-----END PGP SIGNATURE-----\n";
PGPSignature signature = SignatureUtils.readSignatures(SIG).get(0);
String armored = PGPainless.asciiArmor(signature);
assertEquals(SIG, armored);
}
@Test
public void testAsciiArmorToStream() throws IOException, PGPException {
PGPSecretKeyRing secretKeys = TestKeys.getEmilSecretKeyRing();