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Kotlin conversion: SignatureType

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This commit is contained in:
Paul Schaub 2023-08-04 17:06:12 +02:00
parent f0082d3fb7
commit 595b9c7379
Signed by: vanitasvitae
GPG key ID: 62BEE9264BF17311
1 changed files with 95 additions and 92 deletions
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187
pgpainless-core/src/main/java/org/pgpainless/algorithm/SignatureType.java → pgpainless-core/src/main/java/org/pgpainless/algorithm/SignatureType.kt
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@ -1,29 +1,25 @@
// SPDX-FileCopyrightText: 2020 Paul Schaub <vanitasvitae@fsfe.org>
// SPDX-FileCopyrightText: 2023 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package org.pgpainless.algorithm;
package org.pgpainless.algorithm
import org.bouncycastle.openpgp.PGPSignature;
import javax.annotation.Nonnull;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.bouncycastle.openpgp.PGPSignature
/**
* Enum that enlists all the Signature Types defined in rfc4880 section 5.2.1
* See {@link org.bouncycastle.openpgp.PGPSignature} for comparison.
* See [PGPSignature] for comparison.
*
* @see <a href="https://tools.ietf.org/html/rfc4880#section-5.11">rfc4880 §5.2.1. Signature Types</a>
* See [rfc4880 §5.2.1. Signature Types](https://tools.ietf.org/html/rfc4880#section-5.11)
*/
public enum SignatureType {
enum class SignatureType(val code: Int) {
/**
* Signature of a binary document.
* This means the signer owns it, created it, or certifies that it
* has not been modified.
*/
BINARY_DOCUMENT(PGPSignature.BINARY_DOCUMENT),
BINARY_DOCUMENT(0x00),
/**
* Signature of a canonical text document.
@ -31,7 +27,7 @@ public enum SignatureType {
* has not been modified. The signature is calculated over the text
* data with its line endings converted to {@code <CR><LF>}.
*/
CANONICAL_TEXT_DOCUMENT(PGPSignature.CANONICAL_TEXT_DOCUMENT),
CANONICAL_TEXT_DOCUMENT(0x01),
/**
* Standalone signature.
@ -40,7 +36,7 @@ public enum SignatureType {
* binary document. Note that it doesn't make sense to have a V3
* standalone signature.
*/
STANDALONE(PGPSignature.STAND_ALONE),
STANDALONE(0x02),
/**
* Generic certification of a User ID and Public-Key packet.
@ -48,28 +44,28 @@ public enum SignatureType {
* assertion as to how well the certifier has checked that the owner
* of the key is in fact the person described by the User ID.
*/
GENERIC_CERTIFICATION(PGPSignature.DEFAULT_CERTIFICATION),
GENERIC_CERTIFICATION(0x10),
/**
* Persona certification of a User ID and Public-Key packet.
* The issuer of this certification has not done any verification of
* the claim that the owner of this key is the User ID specified.
*/
NO_CERTIFICATION(PGPSignature.NO_CERTIFICATION),
NO_CERTIFICATION(0x11),
/**
* Casual certification of a User ID and Public-Key packet.
* The issuer of this certification has done some casual
* verification of the claim of identity.
*/
CASUAL_CERTIFICATION(PGPSignature.CASUAL_CERTIFICATION),
CASUAL_CERTIFICATION(0x12),
/**
* Positive certification of a User ID and Public-Key packet.
* The issuer of this certification has done substantial
* verification of the claim of identity.
*/
POSITIVE_CERTIFICATION(PGPSignature.POSITIVE_CERTIFICATION),
POSITIVE_CERTIFICATION(0x13),
/**
* Subkey Binding Signature.
@ -78,20 +74,20 @@ public enum SignatureType {
* directly on the primary key and subkey, and not on any User ID or
* other packets. A signature that binds a signing subkey MUST have
* an Embedded Signature subpacket in this binding signature that
* contains a {@link #PRIMARYKEY_BINDING} signature made by the
* contains a [#PRIMARYKEY_BINDING] signature made by the
* signing subkey on the primary key and subkey.
*/
SUBKEY_BINDING(PGPSignature.SUBKEY_BINDING),
SUBKEY_BINDING(0x18),
/**
* Primary Key Binding Signature
* This signature is a statement by a signing subkey, indicating
* that it is owned by the primary key and subkey. This signature
* is calculated the same way as a {@link #SUBKEY_BINDING} signature:
* is calculated the same way as a [#SUBKEY_BINDING] signature:
* directly on the primary key and subkey, and not on any User ID or
* other packets.
*/
PRIMARYKEY_BINDING(PGPSignature.PRIMARYKEY_BINDING),
PRIMARYKEY_BINDING(0x19),
/**
* Signature directly on a key
@ -103,7 +99,7 @@ public enum SignatureType {
* about the key itself, rather than the binding between a key and a
* name.
*/
DIRECT_KEY(PGPSignature.DIRECT_KEY),
DIRECT_KEY(0x1f),
/**
* Key revocation signature
@ -112,7 +108,7 @@ public enum SignatureType {
* key being revoked, or by an authorized revocation key, should be
* considered valid revocation signatures.
*/
KEY_REVOCATION(PGPSignature.KEY_REVOCATION),
KEY_REVOCATION(0x20),
/**
* Subkey revocation signature
@ -122,26 +118,26 @@ public enum SignatureType {
* by an authorized revocation key, should be considered valid
* revocation signatures.
*/
SUBKEY_REVOCATION(PGPSignature.SUBKEY_REVOCATION),
SUBKEY_REVOCATION(0x28),
/**
* Certification revocation signature
* This signature revokes an earlier User ID certification signature
* (signature class 0x10 through 0x13) or signature {@link #DIRECT_KEY}.
* (signature class 0x10 through 0x13) or signature [#DIRECT_KEY].
* It should be issued by the same key that issued the
* revoked signature or an authorized revocation key. The signature
* is computed over the same data as the certificate that it
* revokes, and should have a later creation date than that
* certificate.
*/
CERTIFICATION_REVOCATION(PGPSignature.CERTIFICATION_REVOCATION),
CERTIFICATION_REVOCATION(0x30),
/**
* Timestamp signature.
* This signature is only meaningful for the timestamp contained in
* it.
*/
TIMESTAMP(PGPSignature.TIMESTAMP),
TIMESTAMP(0x40),
/**
* Third-Party Confirmation signature.
@ -156,70 +152,77 @@ public enum SignatureType {
THIRD_PARTY_CONFIRMATION(0x50)
;
private static final Map<Integer, SignatureType> map = new ConcurrentHashMap<>();
static {
for (SignatureType sigType : SignatureType.values()) {
map.put(sigType.getCode(), sigType);
companion object {
/**
* Convert a numerical id into a [SignatureType].
*
* @param code numeric id
* @return signature type enum
*/
@JvmStatic
fun fromCode(code: Int): SignatureType? {
return values().firstOrNull {
it.code == code
}
}
/**
* Convert a numerical id into a [SignatureType].
*
* @param code numeric id
* @return signature type enum
* @throws NoSuchElementException in case of an unmatched signature type code
*/
@JvmStatic
fun requireFromCode(code: Int): SignatureType {
return fromCode(code) ?:
throw NoSuchElementException("Signature type 0x${Integer.toHexString(code)} appears to be invalid.")
}
/**
* Convert a numerical id into a [SignatureType].
*
* @param code numeric id
* @return signature type enum
* @throws IllegalArgumentException in case of an unmatched signature type code
*/
@JvmStatic
@Deprecated("Deprecated in favor of requireFromCode",
ReplaceWith("requireFromCode"))
fun valueOf(code: Int): SignatureType {
try {
return requireFromCode(code)
} catch (e: NoSuchElementException) {
throw IllegalArgumentException(e.message)
}
}
@JvmStatic
fun isRevocationSignature(signatureType: Int): Boolean {
return isRevocationSignature(valueOf(signatureType))
}
@JvmStatic
fun isRevocationSignature(signatureType: SignatureType): Boolean {
return when (signatureType) {
BINARY_DOCUMENT,
CANONICAL_TEXT_DOCUMENT,
STANDALONE,
GENERIC_CERTIFICATION,
NO_CERTIFICATION,
CASUAL_CERTIFICATION,
POSITIVE_CERTIFICATION,
SUBKEY_BINDING,
PRIMARYKEY_BINDING,
DIRECT_KEY,
TIMESTAMP,
THIRD_PARTY_CONFIRMATION -> false
KEY_REVOCATION,
SUBKEY_REVOCATION,
CERTIFICATION_REVOCATION -> true
else -> throw IllegalArgumentException("Unknown signature type: $signatureType")
}
}
}
/**
* Convert a numerical id into a {@link SignatureType}.
*
* @param code numeric id
* @return signature type enum
* @throws IllegalArgumentException in case of an unmatched signature type code
*/
@Nonnull
public static SignatureType valueOf(int code) {
SignatureType type = map.get(code);
if (type != null) {
return type;
}
throw new IllegalArgumentException("Signature type 0x" + Integer.toHexString(code) + " appears to be invalid.");
}
private final int code;
SignatureType(int code) {
this.code = code;
}
/**
* Return the numeric id of the signature type enum.
*
* @return numeric id
*/
public int getCode() {
return code;
}
public static boolean isRevocationSignature(int signatureType) {
return isRevocationSignature(SignatureType.valueOf(signatureType));
}
public static boolean isRevocationSignature(SignatureType signatureType) {
switch (signatureType) {
case BINARY_DOCUMENT:
case CANONICAL_TEXT_DOCUMENT:
case STANDALONE:
case GENERIC_CERTIFICATION:
case NO_CERTIFICATION:
case CASUAL_CERTIFICATION:
case POSITIVE_CERTIFICATION:
case SUBKEY_BINDING:
case PRIMARYKEY_BINDING:
case DIRECT_KEY:
case TIMESTAMP:
case THIRD_PARTY_CONFIRMATION:
return false;
case KEY_REVOCATION:
case SUBKEY_REVOCATION:
case CERTIFICATION_REVOCATION:
return true;
default:
throw new IllegalArgumentException("Unknown signature type: " + signatureType);
}
}
}
}