REQUIRES: External synchronization

* Used by addmultisigaddress / createmultisig: */

Do a HTTP request, with retry if we get disconnected (e.g. due to a timeout). This is a workaround for https://bugs.python.org/issue3

decode v into a string of len bytes

decode a base58 string, check and remove checksum

encode v, which is a string of bytes, to base58.

b58encode a string, with 32-bit checksum

Modify the signature in vin 0 of the tx to fail CLTV Prepends -1 CLTV DROP in the scriptSig itself.

Return hash of RGBA contents of image

Decode a small integer opcode, returning an integer

These functions are taken from the libsecp256k1 distribution and are very ugly. */

This function is taken from the libsecp256k1 distribution and implements * DER parsing for ECDSA signatures, while supporting an arbitrary subset of

Encode a PUSHDATA op, returning bytes

Return hash of raw file contents

Find the hashes of all blocks that weren't previously in the best chain.

Find all format specifiers in a string.

Return type and flags for ELF program headers

Get PE DllCharacteristics bits

Finds and returns a sub array from an array of arrays. to_match should be a unique idetifier of a sub array