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Improve AesGcmSiv Aead performance by optimizing classpath check #5

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Improve AesGcmSiv Aead performance by optimizing classpath check #5

wants to merge 2 commits into from

Commits on Mar 3, 2023

  1. Improve AesGcmSiv Aead performance by optimizing classpath check 

    Motivation:

`Aead` implementation for `AesGcmSiv` checks if `GCMParameterSpec` class
exists in classpath by invoking `Class#forName` method whenever data
gets encrypted or decrypted.

A benchmark on `AesGcmSiv` claims that `Class#forName` accounts for 4-5%
of the total CPU cycles consumed for data en/decryption and 12% or more
throughput gain can be obtained by optimizing away the `Class#forName`
method invocation.

Modification:

Cache the result of the classpath check in `AesGcmSiv`
    @ks-yim
    ks-yim committed Mar 3, 2023
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Commits on Mar 17, 2023

  1. Extract hasGCMParameterSpecClass into static method

    @ks-yim
    ks-yim committed Mar 17, 2023
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    db34a41 View commit details
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