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fix: Force BC provider use #76

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merged 1 commit into from
Jun 13, 2024
Merged

fix: Force BC provider use #76

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16 changes: 9 additions & 7 deletions sdk/src/main/java/io/opentdf/platform/sdk/nanotdf/ECKeyPair.java
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@
import org.bouncycastle.crypto.digests.SHA256Digest;
import org.bouncycastle.crypto.generators.HKDFBytesGenerator;
import org.bouncycastle.crypto.params.HKDFParameters;
import org.bouncycastle.jcajce.provider.asymmetric.ec.KeyPairGeneratorSpi;
import org.bouncycastle.jce.ECNamedCurveTable;
import org.bouncycastle.jce.interfaces.ECPrivateKey;
import org.bouncycastle.jce.interfaces.ECPublicKey;
Expand Down Expand Up @@ -37,6 +38,8 @@ public enum ECAlgorithm {
ECDSA
}

private static final BouncyCastleProvider BOUNCY_CASTLE_PROVIDER = new BouncyCastleProvider();

public enum NanoTDFECCurve {
SECP256R1("secp256r1"),
PRIME256V1("prime256v1"),
Expand Down Expand Up @@ -65,15 +68,14 @@ public ECKeyPair(String curveName, ECAlgorithm algorithm) {
KeyPairGenerator generator;

try {
// Should this just use the algorithm vs use ECDH only for ECDH and ECDSA for everything else.
if (algorithm == ECAlgorithm.ECDH) {
generator = KeyPairGenerator.getInstance("ECDH", "BC");
generator = KeyPairGeneratorSpi.getInstance(ECAlgorithm.ECDH.name(), BOUNCY_CASTLE_PROVIDER);
} else {
generator = KeyPairGenerator.getInstance("ECDSA", "BC");
generator = KeyPairGeneratorSpi.getInstance(ECAlgorithm.ECDSA.name(), BOUNCY_CASTLE_PROVIDER);
}
} catch (NoSuchAlgorithmException e) {
throw new RuntimeException(e);
} catch (NoSuchProviderException e) {
throw new RuntimeException(e);
}

ECGenParameterSpec spec = new ECGenParameterSpec(curveName);
Expand Down Expand Up @@ -160,7 +162,7 @@ public static String getPEMPublicKeyFromX509Cert(String pemInX509Format) {
X509CertificateHolder x509CertificateHolder = (X509CertificateHolder) parser.readObject();
parser.close();
SubjectPublicKeyInfo publicKeyInfo = x509CertificateHolder.getSubjectPublicKeyInfo();
JcaPEMKeyConverter converter = new JcaPEMKeyConverter();
JcaPEMKeyConverter converter = new JcaPEMKeyConverter().setProvider(BOUNCY_CASTLE_PROVIDER);
ECPublicKey publicKey = null;
try {
publicKey = (ECPublicKey)converter.getPublicKey(publicKeyInfo);
Expand Down Expand Up @@ -232,7 +234,7 @@ public static ECPublicKey publicKeyFromPem(String pemEncoding) {
SubjectPublicKeyInfo publicKeyInfo = (SubjectPublicKeyInfo) parser.readObject();
parser.close();

JcaPEMKeyConverter converter = new JcaPEMKeyConverter();
JcaPEMKeyConverter converter = new JcaPEMKeyConverter().setProvider(BOUNCY_CASTLE_PROVIDER);
return (ECPublicKey) converter.getPublicKey(publicKeyInfo);
} catch (IOException e) {
throw new RuntimeException(e);
Expand All @@ -245,7 +247,7 @@ public static ECPrivateKey privateKeyFromPem(String pemEncoding) {
PrivateKeyInfo privateKeyInfo = (PrivateKeyInfo)parser.readObject();
parser.close();

JcaPEMKeyConverter converter = new JcaPEMKeyConverter();
JcaPEMKeyConverter converter = new JcaPEMKeyConverter().setProvider(BOUNCY_CASTLE_PROVIDER);;
return (ECPrivateKey) converter.getPrivateKey(privateKeyInfo);
} catch (IOException e) {
throw new RuntimeException(e);
Expand Down
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