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Remove fallback cipher

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This commit is contained in:
M66B
2022-02-23 11:31:00 +01:00
parent 625bb0dfa8
commit 34627add38
1 changed files with 4 additions and 4 deletions
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8
app/src/main/java/eu/faircode/email/EmailService.java
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@@ -966,7 +966,7 @@ public class EmailService implements AutoCloseable {
SSLContext sslContext;
try {
sslContext = SSLContext.getInstance("SSL");
}catch (Throwable ex){
} catch (Throwable ex) {
Log.e(ex);
sslContext = SSLContext.getInstance("TLS");
}
@@ -1157,9 +1157,8 @@ public class EmailService implements AutoCloseable {
sslSocket.setEnabledProtocols(sslSocket.getSupportedProtocols());
List<String> ciphers = new ArrayList<>();
for (String cipher : sslSocket.getSupportedCipherSuites())
if (!cipher.endsWith("_SCSV"))
ciphers.add(cipher);
ciphers.addAll(Arrays.asList(sslSocket.getSupportedCipherSuites()));
ciphers.remove("TLS_FALLBACK_SCSV");
sslSocket.setEnabledCipherSuites(ciphers.toArray(new String[0]));
} else if (ssl_harden) {
List<String> protocols = new ArrayList<>();
@@ -1184,6 +1183,7 @@ public class EmailService implements AutoCloseable {
List<String> ciphers = new ArrayList<>();
ciphers.addAll(Arrays.asList(sslSocket.getEnabledCipherSuites()));
ciphers.remove("TLS_FALLBACK_SCSV");
for (String cipher : sslSocket.getSupportedCipherSuites())
if (!ciphers.contains(cipher) &&
(cipher.contains("3DES") || cipher.contains("RC4"))) {