f2c103207f
* Force portable code * Switch to old MMX instructions, avoiding SSE & SSE2 instructions. * Less agressive, leave verus code (which checks for it) using advanced instructions. * Compiling only for windows * Update .gitlab-ci.yml * Try -march=native for C++ code generation. * Tweaking machine architecture settings. * Try native alone. * Also get LIBCRYPTOCONDITIONS to -march=native * Switch other lib to native as well. * Try switching back further for CPU architecture. * Even lower end settings. * Turn on symbols. * Use sse2,3 and 4 capable x64. * Once again let verus lib use advances instructioins since it checjs via CPUID at run time. * Modify a few more makefile entries. * Switch to AMD model similar to our test system. * Get snark makefile to k8 too. * Yet another -march to modify to k8, or two of them. * Brute force k8 settings, comment non-portable code out. * Put the condition on cpuid back. * Put non-portable advenced instruction code back * Enable instructions. * Add lib for separate settings. * Update .gitlab-ci.yml * Update .gitlab-ci.yml * Update .gitlab-ci.yml * Update .gitlab-ci.yml * replacing k8-sse3 specific flags to x86-84 * updating versions
libcryptoconditions 
Interledger Crypto-Conditions in C, targeting spec draft-thomas-crypto-conditions-03.
Features shared object and easy to use JSON api, as well as a command line interface written in Python.
Quickstart
git clone --recursive https://github.com/libscott/libcryptoconditions
cd libcryptoconditions
./autogen.sh
./configure
make
./cryptoconditions.py --help
Status
JSON interface may not be particularly safe. The rest is pretty good now.
Embedding
For the binary interface, see cryptoconditions.h.
To embed in other languages, the easiest way may be to call the JSON RPC method via FFI. This is how it looks in Python:
import json
from ctypes import *
so = cdll.LoadLibrary('.libs/libcryptoconditions.so')
so.jsonRPC.restype = c_char_p
def call_cryptoconditions_rpc(method, params):
out = so.jsonRPC(json.dumps({
'method': method,
'params': params,
}))
return json.loads(out)
JSON methods
encodeCondition
Encode a JSON condition to a base64 binary string
cryptoconditions encodeCondition '{
"type": "ed25519-sha-256",
"publicKey": "11qYAYKxCrfVS_7TyWQHOg7hcvPapiMlrwIaaPcHURo"
}'
{
"bin": "pCeAIHmSOauo_E_36r-8TETmnovf7ZkzJOEu1keSq-KJzx1fgQMCAAA",
"uri": "ni:///sha-256;eZI5q6j8T_fqv7xMROaei9_tmTMk4S7WR5Kr4onPHV8?fpt=ed25519-sha-256&cost=131072"
}
decodeCondition
Decode a binary condition
cryptoconditions decodeCondition '{
"bin": "pCeAIHmSOauo_E_36r-8TETmnovf7ZkzJOEu1keSq-KJzx1fgQMCAAA"
}'
{
"bin": "pCeAIHmSOauo_E_36r-8TETmnovf7ZkzJOEu1keSq-KJzx1fgQMCAAA",
"uri": "ni:///sha-256;eZI5q6j8T_fqv7xMROaei9_tmTMk4S7WR5Kr4onPHV8?fpt=ed25519-sha-256&cost=131072"
}
encodeFulfillment
Encode a JSON condition to a binary fulfillment. The condition must be fulfilled, that is, it needs to have signatures present.
cryptoconditions encodeFulfillment '{
{
"type": "ed25519-sha-256",
"publicKey": "E0x0Ws4GhWhO_zBoUyaLbuqCz6hDdq11Ft1Dgbe9y9k",
"signature": "jcuovSRpHwqiC781KzSM1Jd0Qtyfge0cMGttUdLOVdjJlSBFLTtgpinASOaJpd-VGjhSGWkp1hPWuMAAZq6pAg"
}'
{
"fulfillment": "pGSAIBNMdFrOBoVoTv8waFMmi27qgs-oQ3atdRbdQ4G3vcvZgUCNy6i9JGkfCqILvzUrNIzUl3RC3J-B7Rwwa21R0s5V2MmVIEUtO2CmKcBI5oml35UaOFIZaSnWE9a4wABmrqkC"
}
decodeFulfillment
Decode a binary fulfillment
cryptoconditions decodeFulfillment '{
"fulfillment": "pGSAINdamAGCsQq31Uv-08lkBzoO4XLz2qYjJa8CGmj3B1EagUDlVkMAw2CscpCG4syAboKKhId_Hrjl2XTYc-BlIkkBVV-4ghWQozusxh45cBz5tGvSW_XwWVu-JGVRQUOOehAL"
}'
{
"bin": "pCeAIHmSOauo_E_36r-8TETmnovf7ZkzJOEu1keSq-KJzx1fgQMCAAA",
"uri": "ni:///sha-256;eZI5q6j8T_fqv7xMROaei9_tmTMk4S7WR5Kr4onPHV8?fpt=ed25519-sha-256&cost=131072"
}
verifyFulfillment
Verify a fulfillment against a message and a condition URL
cryptoconditions verifyFulfillment '{
"message": "",
"fulfillment": "pGSAINdamAGCsQq31Uv-08lkBzoO4XLz2qYjJa8CGmj3B1EagUDlVkMAw2CscpCG4syAboKKhId_Hrjl2XTYc-BlIkkBVV-4ghWQozusxh45cBz5tGvSW_XwWVu-JGVRQUOOehAL",
"condition": "pCeAIHmSOauo_E_36r-8TETmnovf7ZkzJOEu1keSq-KJzx1fgQMCAAA"
}
{
"valid": true
}
signTreeEd25519
Sign all ed25519 nodes in a condition tree
cryptoconditions signTreeEd25519 '{
"condition": {
"type": "ed25519-sha-256",
"publicKey": "E0x0Ws4GhWhO_zBoUyaLbuqCz6hDdq11Ft1Dgbe9y9k",
},
"privateKey": "11qYAYKxCrfVS_7TyWQHOg7hcvPapiMlrwIaaPcHURo",
"message": "",
}'
{
"num_signed": 1,
"condition": {
"type": "ed25519-sha-256",
"publicKey": "E0x0Ws4GhWhO_zBoUyaLbuqCz6hDdq11Ft1Dgbe9y9k",
"signature": "jcuovSRpHwqiC781KzSM1Jd0Qtyfge0cMGttUdLOVdjJlSBFLTtgpinASOaJpd-VGjhSGWkp1hPWuMAAZq6pAg"
}
}
signTreeSecp256k1
Sign all secp256k1 nodes in a condition tree
cryptoconditions signTreeSecp256k1 '{
"condition": {
"type": "secp256k1-sha-256",
"publicKey": "AmkauD4tVL5-I7NN9hE_A8SlA0WdCIeJe_1Nac_km1hr",
},
"privateKey": "Bxwd5hOLZcTvzrR5Cupm3IV7TWHHl8nNLeO4UhYfRs4",
"message": "",
}'
{
"num_signed": 1,
"condition": {
"type": "secp256k1-sha-256",
"publicKey": "AmkauD4tVL5-I7NN9hE_A8SlA0WdCIeJe_1Nac_km1hr",
"signature": "LSQLzZo4cmt04KoCdoFcbIJX5MZ9CM6324SqkdqV1PppfUwquiWa7HD97hf4jdkdqU3ep8ZS9AU7zEJoUAl_Gg"
}
}