public static KeyMetadata read(String jsonString) {
KeyMetadata kmd = (KeyMetadata) Util.gson().fromJson(jsonString, KeyMetadata.class);
for (KeyVersion version : kmd.getVersions()) {
kmd.versionMap.put(Integer.valueOf(version.getVersionNumber()), version);
}
return kmd;
}
void init() throws KeyczarException {
BigInteger yVal = new BigInteger(Base64Coder.decodeWebSafe(y));
BigInteger pVal = new BigInteger(Base64Coder.decodeWebSafe(p));
BigInteger qVal = new BigInteger(Base64Coder.decodeWebSafe(q));
BigInteger gVal = new BigInteger(Base64Coder.decodeWebSafe(g));
DSAPublicKeySpec spec = new DSAPublicKeySpec(yVal, pVal, qVal, gVal);
try {
KeyFactory kf = KeyFactory.getInstance(KEY_GEN_ALGORITHM);
jcePublicKey = kf.generatePublic(spec);
} catch (GeneralSecurityException e) {
throw new KeyczarException(e);
}
byte[] fullHash =
Util.prefixHash(
Util.stripLeadingZeros(pVal.toByteArray()),
Util.stripLeadingZeros(qVal.toByteArray()),
Util.stripLeadingZeros(gVal.toByteArray()),
Util.stripLeadingZeros(yVal.toByteArray()));
System.arraycopy(fullHash, 0, hash, 0, hash.length);
}
static DsaPublicKey read(String input) throws KeyczarException {
DsaPublicKey key = Util.gson().fromJson(input, DsaPublicKey.class);
key.init();
return key;
}
public String toString() {
return Util.gson().toJson((Object) this);
}