IdemixUtils (fabric-api-docs 1.0-SNAPSHOT API)

java.lang.Object
- org.hyperledger.fabric.sdk.idemix.IdemixUtils

```
public final class IdemixUtils
extends java.lang.Object
```
The class IdemixUtils consists of all needed utility functions for Idemix. The class uses the apache milagro crypto library.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static byte[]`	`bigToBytes(org.apache.milagro.amcl.FP256BN.BIG big)`	bigToBytes turns a BIG into a byte array
`static org.apache.milagro.amcl.RAND`	`getRand()`	Returns a random number generator, amcl.RAND, initialized with a fresh seed.
`static org.apache.milagro.amcl.FP256BN.BIG`	`hashModOrder(byte[] data)`	hashModOrder hashes bytes to an amcl.BIG in 0, ..., GROUP_ORDER
`static org.apache.milagro.amcl.FP256BN.BIG`	`randModOrder(org.apache.milagro.amcl.RAND rng)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - getRand
```
public static org.apache.milagro.amcl.RAND getRand()
```
    Returns a random number generator, amcl.RAND, initialized with a fresh seed.
    
    Returns:
    
    a random number generator
  - randModOrder
```
public static org.apache.milagro.amcl.FP256BN.BIG randModOrder(org.apache.milagro.amcl.RAND rng)
```
    Returns:
    
    a random BIG in 0, ..., GROUP_ORDER-1
  - hashModOrder
```
public static org.apache.milagro.amcl.FP256BN.BIG hashModOrder(byte[] data)
```
    hashModOrder hashes bytes to an amcl.BIG in 0, ..., GROUP_ORDER
    
    Parameters:
    
    data - the data to be hashed
    
    Returns:
    
    a BIG in 0, ..., GROUP_ORDER-1 that is the hash of the data
  - bigToBytes
```
public static byte[] bigToBytes(org.apache.milagro.amcl.FP256BN.BIG big)
```
    bigToBytes turns a BIG into a byte array
    
    Parameters:
    
    big - the BIG to turn into bytes
    
    Returns:
    
    a byte array representation of the BIG