package pkcs11-driver
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pkcs11-driver
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Library
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package pkcs11-driver
Legend:
Library
Module
Module type
Parameter
Class
Class type
Library
Module
Module type
Parameter
Class
Class type
Data: input and output of encryption functions.
An element of type t is a structure made of a pointer to a C string, and its length. It is easy to convert this type to and from OCaml strings.
The reason we use this type is that some PKCS#11 functions require a two step interraction, in which one first gives a null pointer (with length 0) to a function, which modifies the length of the data. Then, the user allocates memory for this Data.t, and performs a second call to the function.
val to_string : t -> stringval of_string : string -> tval create : unit -> tcreate () allocates a new t with length 0, and content the null pointer.
val allocate : t -> unitallocate t updates the content of the t structure to point to freshly allocated memory.
val get_content : t -> Pkcs11_CK_BYTE.t Ctypes.ptrval get_length : t -> P11_ulong.tval get_length_addr : t -> P11_ulong.t Ctypes.ptr