本文整理汇总了Java中com.google.bitcoin.core.Transaction.SIGHASH_ANYONECANPAY_VALUE属性的典型用法代码示例。如果您正苦于以下问题：Java Transaction.SIGHASH_ANYONECANPAY_VALUE属性的具体用法？Java Transaction.SIGHASH_ANYONECANPAY_VALUE怎么用？Java Transaction.SIGHASH_ANYONECANPAY_VALUE使用的例子？那么恭喜您, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类com.google.bitcoin.core.Transaction的用法示例。
在下文中一共展示了Transaction.SIGHASH_ANYONECANPAY_VALUE属性的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: calcSigHashValue
/** Calculates the byte used in the protocol to represent the combination of mode and anyoneCanPay. */
public static int calcSigHashValue(Transaction.SigHash mode, boolean anyoneCanPay) {
int sighashFlags = mode.ordinal() + 1;
if (anyoneCanPay)
sighashFlags |= Transaction.SIGHASH_ANYONECANPAY_VALUE;
return sighashFlags;
}
示例2: isEncodingCanonical
/**
* Returns true if the given signature is has canonical encoding, and will thus be accepted as standard by
* the reference client. DER and the SIGHASH encoding allow for quite some flexibility in how the same structures
* are encoded, and this can open up novel attacks in which a man in the middle takes a transaction and then
* changes its signature such that the transaction hash is different but it's still valid. This can confuse wallets
* and generally violates people's mental model of how Bitcoin should work, thus, non-canonical signatures are now
* not relayed by default.
*/
public static boolean isEncodingCanonical(byte[] signature) {
// See reference client's IsCanonicalSignature, https://bitcointalk.org/index.php?topic=8392.msg127623#msg127623
// A canonical signature exists of: <30> <total len> <02> <len R> <R> <02> <len S> <S> <hashtype>
// Where R and S are not negative (their first byte has its highest bit not set), and not
// excessively padded (do not start with a 0 byte, unless an otherwise negative number follows,
// in which case a single 0 byte is necessary and even required).
if (signature.length < 9 || signature.length > 73)
return false;
int hashType = signature[signature.length-1] & ((int)(~Transaction.SIGHASH_ANYONECANPAY_VALUE));
if (hashType < (Transaction.SigHash.ALL.ordinal() + 1) || hashType > (Transaction.SigHash.SINGLE.ordinal() + 1))
return false;
// "wrong type" "wrong length marker"
if ((signature[0] & 0xff) != 0x30 || (signature[1] & 0xff) != signature.length-3)
return false;
int lenR = signature[3] & 0xff;
if (5 + lenR >= signature.length || lenR == 0)
return false;
int lenS = signature[5+lenR] & 0xff;
if (lenR + lenS + 7 != signature.length || lenS == 0)
return false;
// R value type mismatch R value negative
if (signature[4-2] != 0x02 || (signature[4] & 0x80) == 0x80)
return false;
if (lenR > 1 && signature[4] == 0x00 && (signature[4+1] & 0x80) != 0x80)
return false; // R value excessively padded
// S value type mismatch S value negative
if (signature[6 + lenR - 2] != 0x02 || (signature[6 + lenR] & 0x80) == 0x80)
return false;
if (lenS > 1 && signature[6 + lenR] == 0x00 && (signature[6 + lenR + 1] & 0x80) != 0x80)
return false; // S value excessively padded
return true;
}
示例3: anyoneCanPay
public boolean anyoneCanPay() {
return (sighashFlags & Transaction.SIGHASH_ANYONECANPAY_VALUE) != 0;
}