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HDKeyDerivation: Make precondition message more clear in deriveChildKeyBytesFromPublic().

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This commit is contained in:
Andreas Schildbach
2019-05-03 22:50:37 +02:00
parent 4283d58c23
commit 7197534485
1 changed files with 1 additions and 1 deletions
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core/src/main/java/org/bitcoinj/crypto/HDKeyDerivation.java
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@@ -186,7 +186,7 @@ public final class HDKeyDerivation {
} }
public static RawKeyBytes deriveChildKeyBytesFromPublic(DeterministicKey parent, ChildNumber childNumber, PublicDeriveMode mode) throws HDDerivationException { public static RawKeyBytes deriveChildKeyBytesFromPublic(DeterministicKey parent, ChildNumber childNumber, PublicDeriveMode mode) throws HDDerivationException {
checkArgument(!childNumber.isHardened(), "Can't use private derivation with public keys only."); checkArgument(!childNumber.isHardened(), "Hardened derivation is unsupported (%s).", childNumber);
byte[] parentPublicKey = parent.getPubKeyPoint().getEncoded(true); byte[] parentPublicKey = parent.getPubKeyPoint().getEncoded(true);
checkState(parentPublicKey.length == 33, "Parent pubkey must be 33 bytes, but is " + parentPublicKey.length); checkState(parentPublicKey.length == 33, "Parent pubkey must be 33 bytes, but is " + parentPublicKey.length);
ByteBuffer data = ByteBuffer.allocate(37); ByteBuffer data = ByteBuffer.allocate(37);