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ObjFW
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A protocol for classes providing cryptographic hash functions. More...
#import <ObjFW/OFCryptographicHash.h>
Instance Methods | |
| (instancetype) | - initWithAllowsSwappableMemory: |
| Initializes an already allocated cryptographic hash. | |
| (void) | - updateWithBuffer:length: |
| Adds a buffer to the cryptographic hash to be calculated. | |
| (void) | - calculate |
| Performs the final calculation of the cryptographic hash. | |
| (void) | - reset |
| Resets all state so that a new hash can be calculated. | |
Instance Methods inherited from <OFObject> | |
| (Class) | - class |
| Returns the class of the object. | |
| (nullable Class) | - superclass |
| Returns the superclass of the object. | |
| (unsigned long) | - hash |
| Returns a hash for the object. | |
| (unsigned int) | - retainCount |
| Returns the retain count. | |
| (bool) | - isProxy |
| Returns whether the object is a proxy object. | |
| (bool) | - isKindOfClass: |
| Returns a boolean whether the object is of the specified kind. | |
| (bool) | - isMemberOfClass: |
| Returns a boolean whether the object is a member of the specified class. | |
| (bool) | - respondsToSelector: |
| Returns a boolean whether the object responds to the specified selector. | |
| (bool) | - conformsToProtocol: |
| Checks whether the object conforms to the specified protocol. | |
| (nullable IMP) | - methodForSelector: |
| Returns the implementation for the specified selector. | |
| (nullable id) | - performSelector: |
| Performs the specified selector. | |
| (nullable id) | - performSelector:withObject: |
| Performs the specified selector with the specified object. | |
| (nullable id) | - performSelector:withObject:withObject: |
| Performs the specified selector with the specified objects. | |
| (nullable id) | - performSelector:withObject:withObject:withObject: |
| Performs the specified selector with the specified objects. | |
| (nullable id) | - performSelector:withObject:withObject:withObject:withObject: |
| Performs the specified selector with the specified objects. | |
| (bool) | - isEqual: |
| Checks two objects for equality. | |
| (instancetype) | - retain |
| Increases the retain count. | |
| (void) | - release |
| Decreases the retain count. | |
| (instancetype) | - autorelease |
| Adds the object to the topmost autorelease pool of the thread's autorelease pool stack. | |
| (instancetype) | - self |
| Returns the receiver. | |
| (bool) | - allowsWeakReference |
| Returns whether the object allows a weak reference. | |
| (bool) | - retainWeakReference |
| Retain a weak reference to this object. | |
Instance Methods inherited from <OFCopying> | |
| (id) | - copy |
| Copies the object. | |
Class Methods | |
| (instancetype) | + hashWithAllowsSwappableMemory: |
| Creates a new cryptographic hash. | |
| (size_t) | + digestSize |
| Returns the digest size of the cryptographic hash, in bytes. | |
| (size_t) | + blockSize |
| Returns the block size of the cryptographic hash, in bytes. | |
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. | |
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.
| - (void) calculate |
Performs the final calculation of the cryptographic hash.
| OFHashAlreadyCalculatedException | The hash has already been calculated |
| + (size_t) digestSize |
Returns the digest size of the cryptographic hash, in bytes.
| + (instancetype) hashWithAllowsSwappableMemory: | (bool) | allowsSwappableMemory |
Creates a new cryptographic hash.
| - (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 |
| OFHashAlreadyCalculatedException | The hash has already been calculated |
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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.
| OFHashNotCalculatedException | The hash hasn't been calculated yet |