diff options
Diffstat (limited to 'src/main/java/eu/siacs/conversations/utils/CryptoHelper.java')
-rw-r--r-- | src/main/java/eu/siacs/conversations/utils/CryptoHelper.java | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/main/java/eu/siacs/conversations/utils/CryptoHelper.java b/src/main/java/eu/siacs/conversations/utils/CryptoHelper.java index ab407249..d1b90ab6 100644 --- a/src/main/java/eu/siacs/conversations/utils/CryptoHelper.java +++ b/src/main/java/eu/siacs/conversations/utils/CryptoHelper.java @@ -1,5 +1,6 @@ package eu.siacs.conversations.utils; +import android.os.Bundle; import android.util.Log; import android.util.Pair; @@ -9,6 +10,7 @@ import org.bouncycastle.asn1.x500.style.IETFUtils; import org.bouncycastle.cert.jcajce.JcaX509CertificateHolder; import org.bouncycastle.jce.PrincipalUtil; +import java.security.MessageDigest; import java.security.SecureRandom; import java.security.cert.CertificateEncodingException; import java.security.cert.CertificateParsingException; @@ -121,6 +123,14 @@ public final class CryptoHelper { return builder.toString(); } + public static String prettifyFingerprintCert(String fingerprint) { + StringBuilder builder = new StringBuilder(fingerprint); + for(int i=2;i < builder.length(); i+=3) { + builder.insert(i,':'); + } + return builder.toString(); + } + public static String[] getOrderedCipherSuites(final String[] platformSupportedCipherSuites) { final Collection<String> cipherSuites = new LinkedHashSet<>(Arrays.asList(Config.ENABLED_CIPHERS)); final List<String> platformCiphers = Arrays.asList(platformSupportedCipherSuites); @@ -167,6 +177,46 @@ public final class CryptoHelper { } } + public static Bundle extractCertificateInformation(X509Certificate certificate) { + Bundle information = new Bundle(); + try { + JcaX509CertificateHolder holder = new JcaX509CertificateHolder(certificate); + X500Name subject = holder.getSubject(); + try { + information.putString("subject_cn", subject.getRDNs(BCStyle.CN)[0].getFirst().getValue().toString()); + } catch (Exception e) { + //ignored + } + try { + information.putString("subject_o",subject.getRDNs(BCStyle.O)[0].getFirst().getValue().toString()); + } catch (Exception e) { + //ignored + } + + X500Name issuer = holder.getIssuer(); + try { + information.putString("issuer_cn", issuer.getRDNs(BCStyle.CN)[0].getFirst().getValue().toString()); + } catch (Exception e) { + //ignored + } + try { + information.putString("issuer_o", issuer.getRDNs(BCStyle.O)[0].getFirst().getValue().toString()); + } catch (Exception e) { + //ignored + } + try { + MessageDigest md = MessageDigest.getInstance("SHA-1"); + byte[] fingerprint = md.digest(certificate.getEncoded()); + information.putString("sha1", prettifyFingerprintCert(bytesToHex(fingerprint))); + } catch (Exception e) { + + } + return information; + } catch (CertificateEncodingException e) { + return information; + } + } + public static int encryptionTypeToText(int encryption) { switch (encryption) { case Message.ENCRYPTION_OTR: |