aboutsummaryrefslogtreecommitdiff
path: root/src/pubkey.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/pubkey.h')
-rw-r--r--src/pubkey.h37
1 files changed, 22 insertions, 15 deletions
diff --git a/src/pubkey.h b/src/pubkey.h
index c9f3c18eb3..e6c32913de 100644
--- a/src/pubkey.h
+++ b/src/pubkey.h
@@ -1,5 +1,6 @@
// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2016 The Bitcoin Core developers
+// Copyright (c) 2017 The Zcash developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
@@ -13,16 +14,6 @@
#include <stdexcept>
#include <vector>
-/**
- * secp256k1:
- * const unsigned int PRIVATE_KEY_SIZE = 279;
- * const unsigned int PUBLIC_KEY_SIZE = 65;
- * const unsigned int SIGNATURE_SIZE = 72;
- *
- * see www.keylength.com
- * script supports up to 75 for single byte push
- */
-
const unsigned int BIP32_EXTKEY_SIZE = 74;
/** A reference to a CKey: the Hash160 of its serialized public key */
@@ -38,21 +29,37 @@ typedef uint256 ChainCode;
/** An encapsulated public key. */
class CPubKey
{
+public:
+ /**
+ * secp256k1:
+ */
+ static const unsigned int PUBLIC_KEY_SIZE = 65;
+ static const unsigned int COMPRESSED_PUBLIC_KEY_SIZE = 33;
+ static const unsigned int SIGNATURE_SIZE = 72;
+ static const unsigned int COMPACT_SIGNATURE_SIZE = 65;
+ /**
+ * see www.keylength.com
+ * script supports up to 75 for single byte push
+ */
+ static_assert(
+ PUBLIC_KEY_SIZE >= COMPRESSED_PUBLIC_KEY_SIZE,
+ "COMPRESSED_PUBLIC_KEY_SIZE is larger than PUBLIC_KEY_SIZE");
+
private:
/**
* Just store the serialized data.
* Its length can very cheaply be computed from the first byte.
*/
- unsigned char vch[65];
+ unsigned char vch[PUBLIC_KEY_SIZE];
//! Compute the length of a pubkey with a given first byte.
unsigned int static GetLen(unsigned char chHeader)
{
if (chHeader == 2 || chHeader == 3)
- return 33;
+ return COMPRESSED_PUBLIC_KEY_SIZE;
if (chHeader == 4 || chHeader == 6 || chHeader == 7)
- return 65;
+ return PUBLIC_KEY_SIZE;
return 0;
}
@@ -127,7 +134,7 @@ public:
void Unserialize(Stream& s)
{
unsigned int len = ::ReadCompactSize(s);
- if (len <= 65) {
+ if (len <= PUBLIC_KEY_SIZE) {
s.read((char*)vch, len);
} else {
// invalid pubkey, skip available data
@@ -166,7 +173,7 @@ public:
//! Check whether this is a compressed public key.
bool IsCompressed() const
{
- return size() == 33;
+ return size() == COMPRESSED_PUBLIC_KEY_SIZE;
}
/**