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author | Sergio Giro <sgiro@google.com> | 2016-02-01 18:52:42 +0000 |
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committer | Gerrit Code Review <noreply-gerritcodereview@google.com> | 2016-02-01 18:52:42 +0000 |
commit | 9218edabd1ef9852bc2f13115dcadc81b442dd6c (patch) | |
tree | 8229ff72c8cbb06f49dce3a8382930919fa6fc2b /bcpkix/src/main/java/org/bouncycastle/cms/jcajce/JceAlgorithmIdentifierConverter.java | |
parent | 9b30eb05e5be69d51881a0d1b31e503e97acd784 (diff) | |
parent | 397d32894b89b506dc318e0f83446187c9b76ebe (diff) | |
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Merge "Merge remote-tracking branch 'aosp/upstream-master' into merge-152-from-upstream"
Diffstat (limited to 'bcpkix/src/main/java/org/bouncycastle/cms/jcajce/JceAlgorithmIdentifierConverter.java')
-rw-r--r-- | bcpkix/src/main/java/org/bouncycastle/cms/jcajce/JceAlgorithmIdentifierConverter.java | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/bcpkix/src/main/java/org/bouncycastle/cms/jcajce/JceAlgorithmIdentifierConverter.java b/bcpkix/src/main/java/org/bouncycastle/cms/jcajce/JceAlgorithmIdentifierConverter.java new file mode 100644 index 0000000..59928f4 --- /dev/null +++ b/bcpkix/src/main/java/org/bouncycastle/cms/jcajce/JceAlgorithmIdentifierConverter.java @@ -0,0 +1,64 @@ +package org.bouncycastle.cms.jcajce; + + +import java.security.AlgorithmParameters; +import java.security.NoSuchAlgorithmException; +import java.security.NoSuchProviderException; +import java.security.Provider; +import java.security.SecureRandom; + +import org.bouncycastle.asn1.ASN1Encodable; +import org.bouncycastle.asn1.x509.AlgorithmIdentifier; +import org.bouncycastle.cms.CMSException; + +public class JceAlgorithmIdentifierConverter +{ + private EnvelopedDataHelper helper = new EnvelopedDataHelper(new DefaultJcaJceExtHelper()); + private SecureRandom random; + + public JceAlgorithmIdentifierConverter() + { + } + + public JceAlgorithmIdentifierConverter setProvider(Provider provider) + { + this.helper = new EnvelopedDataHelper(new ProviderJcaJceExtHelper(provider)); + + return this; + } + + public JceAlgorithmIdentifierConverter setProvider(String providerName) + { + this.helper = new EnvelopedDataHelper(new NamedJcaJceExtHelper(providerName)); + + return this; + } + + public AlgorithmParameters getAlgorithmParameters(AlgorithmIdentifier algorithmIdentifier) + throws CMSException + { + ASN1Encodable parameters = algorithmIdentifier.getParameters(); + + if (parameters == null) + { + return null; + } + + try + { + AlgorithmParameters params = helper.createAlgorithmParameters(algorithmIdentifier.getAlgorithm()); + + CMSUtils.loadParameters(params, algorithmIdentifier.getParameters()); + + return params; + } + catch (NoSuchAlgorithmException e) + { + throw new CMSException("can't find parameters for algorithm", e); + } + catch (NoSuchProviderException e) + { + throw new CMSException("can't find provider for algorithm", e); + } + } +} |