SecKeyGeneratePairAsync(_:_:_:)

Declaration

func SecKeyGeneratePairAsync(_ parameters: CFDictionary, _ deliveryQueue: dispatch_queue_t, _ result: @escaping  SecKeyGeneratePairBlock)

Parameters

• parameters:

  A key generation parameter dictionary. At minimum, this must contain Ksecattrkeytype and Ksecattrkeysizeinbits. In addition, this function assumes default values for the following keys:

  • Ksecattrlabel defaults to NULL.

  • Ksecattrispermanent if this key is present and has a value of Kcfbooleantrue, the key or key pair will be added to the default keychain.

  • Ksecattrapplicationtag defaults to NULL.

  • Ksecattreffectivekeysize defaults to NULL, which means the effective key size is the same as the key size (Ksecattrkeysizeinbits).

  • Ksecattrcanencrypt defaults to Kcfbooleanfalse for private keys, Kcfbooleantrue for public keys.

  • Ksecattrcandecrypt defaults to Kcfbooleantrue for private keys, Kcfbooleanfalse for public keys.

  • Ksecattrcanderive defaults to Kcfbooleantrue.

  • Ksecattrcansign defaults to Kcfbooleantrue for private keys, Kcfbooleanfalse for public keys.

  • Ksecattrcanverify defaults to Kcfbooleanfalse for private keys, Kcfbooleantrue for public keys.

  • Ksecattrcanwrap defaults to Kcfbooleanfalse for private keys, Kcfbooleantrue for public keys.

  • Ksecattrcanunwrap defaults to Kcfbooleantrue for private keys, Kcfbooleanfalse for public keys.

  These default values can be overridden by adding a value for the associated key in the parameter dictionary.

• deliveryQueue:

  The dispatch queue on which the result block should be scheduled.

• result:

  A block of type Seckeygeneratepairblock that gets called with the result upon completion.