java.lang.Object
- com.scurrilous.circe.CommonHashes

```
public final class CommonHashes
extends java.lang.Object
```
Static methods to obtain commonly-used hash functions. Note that a suitable provider JAR must be made available on the class path. This class does not have direct access to specific implementations; it simply constructs the hash parameters and uses the Hashes class to search for a provider.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static IncrementalIntHash`	`crc32()`	Returns an incremental stateless hash function implementing the CRC-32 checksum algorithm.
`static IncrementalIntHash`	`crc32c()`	Returns an incremental stateless hash function implementing the CRC-32C checksum algorithm.
`static IncrementalLongHash`	`crc64()`	Returns an incremental stateless hash function implementing the CRC-64 checksum algorithm.
`static StatefulHash`	`md5()`	Returns a hash function implementing the MD5 algorithm (128 bits).
`static StatefulHash`	`murmur3_128()`	Returns a hash function implementing the MurmurHash3 algorithm, 128-bit x64 variant, with a seed of 0.
`static StatefulHash`	`murmur3_128(int seed)`	Returns a hash function implementing the MurmurHash3 algorithm, 128-bit x64 variant, with the given seed value.
`static StatelessIntHash`	`murmur3_32()`	Returns a hash function implementing the MurmurHash3 algorithm, 32-bit x86 variant, with a seed of 0.
`static StatelessIntHash`	`murmur3_32(int seed)`	Returns a hash function implementing the MurmurHash3 algorithm, 32-bit x86 variant, with the given seed value
`static StatefulHash`	`sha1()`	Returns a hash function implementing the SHA-1 algorithm (160 bits).
`static StatefulHash`	`sha256()`	Returns a hash function implementing the SHA-256 algorithm (256 bits).
`static StatefulHash`	`sha384()`	Returns a hash function implementing the SHA-384 algorithm (384 bits).
`static StatefulHash`	`sha512()`	Returns a hash function implementing the SHA-512 algorithm (512 bits).
`static StatelessLongHash`	`sipHash24()`	Returns a hash function implementing the SipHash-2-4 algorithm (64 bits) with the default seed, `00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F`.
`static StatelessLongHash`	`sipHash24(long seedLow, long seedHigh)`	Returns a hash function implementing the SipHash-2-4 algorithm (64 bits) with the given seed value.

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

- Method Detail
  - crc32
```
public static IncrementalIntHash crc32()
```
    Returns an incremental stateless hash function implementing the CRC-32 checksum algorithm.
    
    Returns:
    
    a CRC-32 stateless incremental integer hash
    
    Throws:
    
    java.lang.UnsupportedOperationException - if no provider is available
  - crc32c
```
public static IncrementalIntHash crc32c()
```
    Returns an incremental stateless hash function implementing the CRC-32C checksum algorithm.
    
    Returns:
    
    a CRC-32C stateless incremental integer hash
    
    Throws:
    
    java.lang.UnsupportedOperationException - if no provider is available
  - crc64
```
public static IncrementalLongHash crc64()
```
    Returns an incremental stateless hash function implementing the CRC-64 checksum algorithm.
    
    Returns:
    
    a CRC-64 stateless incremental long integer hash
    
    Throws:
    
    java.lang.UnsupportedOperationException - if no provider is available
  - murmur3_32
```
public static StatelessIntHash murmur3_32()
```
    Returns a hash function implementing the MurmurHash3 algorithm, 32-bit x86 variant, with a seed of 0.
    
    Returns:
    
    a MurmurHash3 32-bit/x86 stateless integer hash
    
    Throws:
    
    java.lang.UnsupportedOperationException - if no provider is available
  - murmur3_32
```
public static StatelessIntHash murmur3_32(int seed)
```
    Returns a hash function implementing the MurmurHash3 algorithm, 32-bit x86 variant, with the given seed value
    
    Parameters:
    
    seed - the 32-bit seed value
    
    Returns:
    
    a MurmurHash3 32-bit/x86 stateless integer hash
    
    Throws:
    
    java.lang.UnsupportedOperationException - if no provider is available
  - murmur3_128
```
public static StatefulHash murmur3_128()
```
    Returns a hash function implementing the MurmurHash3 algorithm, 128-bit x64 variant, with a seed of 0.
    
    Returns:
    
    a MurmurHash3 128-bit/x64 stateful hash
    
    Throws:
    
    java.lang.UnsupportedOperationException - if no provider is available
  - murmur3_128
```
public static StatefulHash murmur3_128(int seed)
```
    Returns a hash function implementing the MurmurHash3 algorithm, 128-bit x64 variant, with the given seed value.
    
    Parameters:
    
    seed - the 32-bit seed value
    
    Returns:
    
    a MurmurHash3 128-bit/x64 stateful hash
    
    Throws:
    
    java.lang.UnsupportedOperationException - if no provider is available
  - sipHash24
```
public static StatelessLongHash sipHash24()
```
    Returns a hash function implementing the SipHash-2-4 algorithm (64 bits) with the default seed, 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F.
    
    Returns:
    
    a SipHash-2-4 stateless long integer hash
    
    Throws:
    
    java.lang.UnsupportedOperationException - if no provider is available
  - sipHash24
```
public static StatelessLongHash sipHash24(long seedLow,
                                          long seedHigh)
```
    Returns a hash function implementing the SipHash-2-4 algorithm (64 bits) with the given seed value.
    
    Parameters:
    
    seedLow - the low-order 64 bits of the seed
    
    seedHigh - the high-order 64 bits of the seed
    
    Returns:
    
    a SipHash-2-4 stateless long integer hash
    
    Throws:
    
    java.lang.UnsupportedOperationException - if no provider is available
  - md5
```
public static StatefulHash md5()
```
    Returns a hash function implementing the MD5 algorithm (128 bits).
    
    Returns:
    
    an MD5 stateful hash
    
    Throws:
    
    java.lang.UnsupportedOperationException - if no provider is available
  - sha1
```
public static StatefulHash sha1()
```
    Returns a hash function implementing the SHA-1 algorithm (160 bits).
    
    Returns:
    
    a SHA-1 stateful hash
    
    Throws:
    
    java.lang.UnsupportedOperationException - if no provider is available
  - sha256
```
public static StatefulHash sha256()
```
    Returns a hash function implementing the SHA-256 algorithm (256 bits).
    
    Returns:
    
    a SHA-256 stateful hash
    
    Throws:
    
    java.lang.UnsupportedOperationException - if no provider is available
  - sha384
```
public static StatefulHash sha384()
```
    Returns a hash function implementing the SHA-384 algorithm (384 bits).
    
    Returns:
    
    a SHA-384 stateful hash
    
    Throws:
    
    java.lang.UnsupportedOperationException - if no provider is available
  - sha512
```
public static StatefulHash sha512()
```
    Returns a hash function implementing the SHA-512 algorithm (512 bits).
    
    Returns:
    
    a SHA-512 stateful hash
    
    Throws:
    
    java.lang.UnsupportedOperationException - if no provider is available

Class CommonHashes

Method Summary

Methods inherited from class java.lang.Object

Method Detail

crc32

crc32c

crc64

murmur3_32

murmur3_32

murmur3_128

murmur3_128

sipHash24

sipHash24

md5

sha1

sha256

sha384

sha512