BoringSSLRSAPublicKey use EVP_PKEY API #205
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Motivation Increased versatility of the `BoringSSLRSAPublicKey` encrypt and decrypt methods to make future extensions possible. Modifications Switch the `BoringSSLRSAPublicKey` encrypt and decrypt methods to use the `EVP_PKEY_*` API directly rather than going through the RSA abstractions. Result Increased versatility of the `BoringSSLRSAPublicKey` encrypt and decrypt methods.
| CInt(dataPtr.count), | ||
| dataPtr.baseAddress, | ||
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| let pkey = CCryptoBoringSSL_EVP_PKEY_new() |
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I wonder if we should amend the type to only hold this as an EVP_PKEY, instead of holding an RSA pointer at all.
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Obviously you have more context here but I'm not sure that's the best thing to do.
The RSA pointer is currently used in a few different locations outside of the initializers e.g. pkcs1DERRepresentation, derRepresentation, keySizeInBits, isValidSignature. Each of these would then need a call to get the RSA pointer unless we also stored that (which is an option). I looked for alternative functions but there are a few including BIO operations which now have annotations in the docs which look like deprecations (here) which I think make this complex enough to warrant a separate piece of work if we want to do it.
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Since the get0 functions offer a cheap way to access the underlying RSA object we have opted to just keep hold of the EVP_KEY
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| return rc | ||
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| return rc == 0 ? CInt(-1) : CInt(writtenLength) |
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Let's not use -1 as a sentinel, let's just throw.
Switch BoringSSLRSAPublicKey encrypt/decrypt methods to use
EVP_PKEY_*APIMotivation
Increased versatility of the
BoringSSLRSAPublicKeyencrypt and decrypt methods to make future extensions possible.Modifications
Switch the
BoringSSLRSAPublicKeyencrypt and decrypt methods to use theEVP_PKEY_*API directly rather than going through the RSA abstractions.Result
Increased versatility of the
BoringSSLRSAPublicKeyencrypt and decrypt methods.