Download cryptoapi

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Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Is this page helpful? Please rate your experience Yes No. I have been trying to download this API without any success. I have done google searches and searches on Micosoft's own sites to no avail. It is a set of dynamically linked libraries that provides an abstraction layer which isolates programmers from the code used to encrypt the data.

CryptoAPI supports both public-key and symmetric key cryptography, though persistent symmetric keys are not supported. It includes functionality for encrypting and decrypting data and for authentication using digital certificates.

It also includes a cryptographically secure pseudorandom number generator function CryptGenRandom. CSPs are the modules that do the actual work of encoding and decoding data by performing the cryptographic functions.