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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/JceKeyAgreeEnvelopedRecipient.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/JceKeyAgreeEnvelopedRecipient.java')
-rw-r--r-- | bcpkix/src/main/java/org/bouncycastle/cms/jcajce/JceKeyAgreeEnvelopedRecipient.java | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/bcpkix/src/main/java/org/bouncycastle/cms/jcajce/JceKeyAgreeEnvelopedRecipient.java b/bcpkix/src/main/java/org/bouncycastle/cms/jcajce/JceKeyAgreeEnvelopedRecipient.java new file mode 100644 index 0000000..fe647d7 --- /dev/null +++ b/bcpkix/src/main/java/org/bouncycastle/cms/jcajce/JceKeyAgreeEnvelopedRecipient.java @@ -0,0 +1,45 @@ +package org.bouncycastle.cms.jcajce; + +import java.io.InputStream; +import java.security.Key; +import java.security.PrivateKey; + +import javax.crypto.Cipher; +import javax.crypto.CipherInputStream; + +import org.bouncycastle.asn1.ASN1OctetString; +import org.bouncycastle.asn1.x509.AlgorithmIdentifier; +import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo; +import org.bouncycastle.cms.CMSException; +import org.bouncycastle.cms.RecipientOperator; +import org.bouncycastle.operator.InputDecryptor; + +public class JceKeyAgreeEnvelopedRecipient + extends JceKeyAgreeRecipient +{ + public JceKeyAgreeEnvelopedRecipient(PrivateKey recipientKey) + { + super(recipientKey); + } + + public RecipientOperator getRecipientOperator(AlgorithmIdentifier keyEncryptionAlgorithm, final AlgorithmIdentifier contentEncryptionAlgorithm, SubjectPublicKeyInfo senderPublicKey, ASN1OctetString userKeyingMaterial, byte[] encryptedContentKey) + throws CMSException + { + Key secretKey = extractSecretKey(keyEncryptionAlgorithm, contentEncryptionAlgorithm, senderPublicKey, userKeyingMaterial, encryptedContentKey); + + final Cipher dataCipher = contentHelper.createContentCipher(secretKey, contentEncryptionAlgorithm); + + return new RecipientOperator(new InputDecryptor() + { + public AlgorithmIdentifier getAlgorithmIdentifier() + { + return contentEncryptionAlgorithm; + } + + public InputStream getInputStream(InputStream dataOut) + { + return new CipherInputStream(dataOut, dataCipher); + } + }); + } +} |