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Check S/MIME key validity

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M66B
2019-12-06 11:32:41 +01:00
parent af8e36e23e
commit 8dd9c62365
11 changed files with 2234 additions and 98 deletions
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38
app/src/main/java/eu/faircode/email/EntityCertificate.java
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@@ -39,6 +39,7 @@ import java.security.cert.CertificateParsingException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Date;
import java.util.List;
import java.util.Objects;
@@ -63,24 +64,37 @@ public class EntityCertificate {
@NonNull
public String email;
public String subject;
public Long after;
public Long before;
@NonNull
public String data;
private void setEncoded(byte[] encoded) {
this.data = Base64.encodeToString(encoded, Base64.NO_WRAP);
}
static EntityCertificate from(X509Certificate certificate, String email) throws CertificateEncodingException, NoSuchAlgorithmException {
EntityCertificate record = new EntityCertificate();
record.fingerprint = getFingerprint(certificate);
record.email = email;
record.subject = getSubject(certificate);
private byte[] getEncoded() {
return Base64.decode(this.data, Base64.NO_WRAP);
}
Date after = certificate.getNotBefore();
Date before = certificate.getNotAfter();
void setCertificate(X509Certificate certificate) throws CertificateEncodingException {
setEncoded(certificate.getEncoded());
record.after = (after == null ? null : after.getTime());
record.before = (before == null ? null : before.getTime());
record.data = Base64.encodeToString(certificate.getEncoded(), Base64.NO_WRAP);
return record;
}
X509Certificate getCertificate() throws CertificateException {
byte[] encoded = Base64.decode(this.data, Base64.NO_WRAP);
return (X509Certificate) CertificateFactory.getInstance("X.509")
.generateCertificate(new ByteArrayInputStream(getEncoded()));
.generateCertificate(new ByteArrayInputStream(encoded));
}
boolean isOutdated() {
long now = new Date().getTime();
return ((this.after != null && now <= this.after) || (this.before != null && now > this.before));
}
static String getFingerprint(X509Certificate certificate) throws CertificateEncodingException, NoSuchAlgorithmException {
@@ -126,6 +140,12 @@ public class EntityCertificate {
certificate.fingerprint = getFingerprint(cert);
certificate.subject = getSubject(cert);
Date after = cert.getNotBefore();
Date before = cert.getNotAfter();
certificate.after = (after == null ? null : after.getTime());
certificate.before = (before == null ? null : before.getTime());
return certificate;
}