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POBouncycastle encryption algorithms not provided
 

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    <p>I'm trying to use BouncyCastle with android to implement ECDH and EL Gamal. I've added the bouncycastle jar file (bcprov-jdk16-144.jar) and written some code that works with my computers jvm however when I try and port it to my android application it throws: </p> <pre><code>java.security.NoSuchAlgorithmException: KeyPairGenerator ECDH implementation not found </code></pre> <p>A sample of the code is:</p> <pre><code>Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider()); java.security.KeyPairGenerator keyGen = org.bouncycastle.jce.provider.asymmetric.ec.KeyPairGenerator.getInstance("ECDH", "BC"); ECGenParameterSpec ecSpec = new ECGenParameterSpec("prime192v1"); keyGen.initialize(ecSpec, SecureRandom.getInstance("SHA1PRNG")); KeyPair pair = keyGen.generateKeyPair(); PublicKey pubk = pair.getPublic(); PrivateKey prik = pair.getPrivate(); </code></pre> <p>I then wrote a simple program to see what encryption algorithms are available and ran it on my android emulator and on my computers jvm the code was:</p> <pre><code>Set&lt;Provider.Service&gt; rar = new org.bouncycastle.jce.provider.BouncyCastleProvider().getServices(); Iterator&lt;Provider.Service&gt; ir = rar.iterator(); while(ir.hasNext()) System.out.println(ir.next().getAlgorithm()); </code></pre> <p>On android I do not get any of the EC algorithms while ran normally on my computer it's fine.</p> <p>I'm also getting the following two errors when compiling for a lot of the bouncy castle classes:</p> <p>01-07 17:17:42.548: INFO/dalvikvm(1054): DexOpt: not resolving ambiguous class 'Lorg/bouncycastle/asn1/ASN1Encodable;'</p> <p>01-07 17:17:42.548: DEBUG/dalvikvm(1054): DexOpt: not verifying 'Lorg/bouncycastle/asn1/ess/OtherSigningCertificate;': multiple definitions </p> <p>What am I doing wrong?</p>
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    1. USDavid Read
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    1. COOk I've now tried adding bouncycastle as a separate .jar file, now when I check what algorithms are available it says ECDH and El Gamal are both available but the exact same errors and exceptions still occur
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    2. CODid you ever resolve this?
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    3. COplease update your question and tell us what you did to fix it.
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