ObjFW
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A protocol for classes providing cryptographic hash functions. More...
#import <ObjFW/OFCryptoHash.h>
Instance Methods | |
(instancetype) | - initWithAllowsSwappableMemory: |
Initializes an already allocated cryptographic hash. More... | |
(void) | - updateWithBuffer:length: |
Adds a buffer to the cryptographic hash to be calculated. More... | |
(void) | - reset |
Resets all state so that a new hash can be calculated. More... | |
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(Class) | - class |
Returns the class of the object. More... | |
(nullable Class) | - superclass |
Returns the superclass of the object. More... | |
(unsigned long) | - hash |
Returns a 32 bit hash for the object. More... | |
(unsigned int) | - retainCount |
Returns the retain count. More... | |
(bool) | - isProxy |
Returns whether the object is a proxy object. More... | |
(bool) | - allowsWeakReference |
Returns whether the object allows weak references. More... | |
(bool) | - isKindOfClass: |
Returns a boolean whether the object of the specified kind. More... | |
(bool) | - isMemberOfClass: |
Returns a boolean whether the object is a member of the specified class. More... | |
(bool) | - respondsToSelector: |
Returns a boolean whether the object responds to the specified selector. More... | |
(bool) | - conformsToProtocol: |
Checks whether the object conforms to the specified protocol. More... | |
(nullable IMP) | - methodForSelector: |
Returns the implementation for the specified selector. More... | |
(nullable id) | - performSelector: |
Performs the specified selector. More... | |
(nullable id) | - performSelector:withObject: |
Performs the specified selector with the specified object. More... | |
(nullable id) | - performSelector:withObject:withObject: |
Performs the specified selector with the specified objects. More... | |
(nullable id) | - performSelector:withObject:withObject:withObject: |
Performs the specified selector with the specified objects. More... | |
(nullable id) | - performSelector:withObject:withObject:withObject:withObject: |
Performs the specified selector with the specified objects. More... | |
(bool) | - isEqual: |
Checks two objects for equality. More... | |
(instancetype) | - retain |
Increases the retain count. More... | |
(void) | - release |
Decreases the retain count. More... | |
(instancetype) | - autorelease |
Adds the object to the topmost autorelease pool of the thread's autorelease pool stack. More... | |
(instancetype) | - self |
Returns the receiver. More... | |
(bool) | - retainWeakReference |
Retain a weak reference to this object. More... | |
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(id) | - copy |
Copies the object. More... | |
Class Methods | |
(instancetype) | + cryptoHashWithAllowsSwappableMemory: |
Creates a new cryptographic hash. More... | |
(size_t) | + digestSize |
Returns the digest size of the cryptographic hash, in bytes. More... | |
(size_t) | + blockSize |
Returns the block size of the cryptographic hash, in bytes. More... | |
Properties | |
size_t | digestSize |
The digest size of the cryptographic hash, in bytes. | |
size_t | blockSize |
The block size of the cryptographic hash, in bytes. | |
bool | allowsSwappableMemory |
Whether data may be stored in swappable memory. | |
bool | calculated |
A boolean whether the hash has already been calculated. | |
const unsigned char * | digest |
A buffer containing the cryptographic hash. More... | |
A protocol for classes providing cryptographic hash functions.
A cryptographic hash implementing this protocol can be copied. The entire state is copied, allowing to calculate a new hash from there. This is especially useful for generating many hashes with a common prefix.
+ (size_t) blockSize |
Returns the block size of the cryptographic hash, in bytes.
+ (instancetype) cryptoHashWithAllowsSwappableMemory: | (bool) | allowsSwappableMemory |
Creates a new cryptographic hash.
+ (size_t) digestSize |
Returns the digest size of the cryptographic hash, in bytes.
- (instancetype) initWithAllowsSwappableMemory: | (bool) | allowsSwappableMemory |
Initializes an already allocated cryptographic hash.
- (void) reset |
- (void) updateWithBuffer: | (const void *) | buffer | |
length: | (size_t) | length | |
Adds a buffer to the cryptographic hash to be calculated.
buffer | The buffer which should be included into the calculation |
length | The length of the buffer |
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readnonatomicassign |
A buffer containing the cryptographic hash.
The size of the buffer depends on the hash used. The buffer is part of the receiver's memory pool.