31 Cryptography🔗ℹ

denxi/crypto interacts with a bundled derivative of an OpenSSL library. This module has no side-effects on instantiation, but will mutate either a FFI object in the Racket runtime, or an error code cache in the C runtime. To reset the Racket runtime cache, call crypto-clear-ffi-cache!. To dump the error code cache, call crypto-dump-error-queue!.

The value returned from this function is cached in Racket-managed memory. If the cached value is an exception, then (get-crypto-lib!) will attempt to load the library again. This will replace the cached exception.

Returns #f if the cryptography library is cached as an exception, or if objname was not found in the library.

The value returned from this function is cached in Racket-managed memory.

If the cryptography library is currently cached as an exception, this function will always return #f.

This function operates independently from denxi/l10n. If the output string does not respect the user’s locale, then supply translations to the correct denxi/l10n extention and use that extension instead.

Note that the side-effect implies movement of the entire error queue from the C runtime into the raised Racket value. Leverage this when you have reason to expect that the queue contains only the errors that pertain to a failed operation.