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ChaCha20 CTR Encryption #169

Merged
merged 22 commits into from
Apr 18, 2023
Merged

ChaCha20 CTR Encryption #169

merged 22 commits into from
Apr 18, 2023

Commits on Apr 11, 2023

  1. OpenSSLChaCha20CTR Implementation. Wraps CCryptoBoringSSL_CRYPTO_chac… 

    …ha_20.
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  2. Insecure extension implementing the ChaCha20 CTR encrypt method.

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  3. Added ChaCha20CTR Tests based on vectors provided in RFC9001 Appendix… 

    … A.5
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Commits on Apr 12, 2023

  1. Corrected year in header

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  2. Changed return type to Data. Removed redundant pointer castings. Remo… 

    …ved unnecessary array allocations in favor of withUnsafeBytes.
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  3. Introduced a typed ChaCha20CTR Nonce and Counter struct in order to h… 

    …elp enforce parameter constraints and type safety.
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  4. Formatting

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  5. Updated tests to use new Nonce and Counter structs. Added additional … 

    …test checking for invalid parameters.
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  6. Switch to HexStrings for better readability.

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  7. Removed empty line at top of file

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  8. Fixed UInt32.max counter assertion.

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  9. Moved the bindMemory calls out of the function and copied a note from… 

    … a similar situation elsewhere in the codebase.
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  10. Formatting

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Commits on Apr 13, 2023

  1. Implemented an _encryptContiguous function that prevents having to us… 

    …e the withContiguousStorageIfAvailable method. If our DataProtocol is contiguous we encrypt directly, otherwise we consolidate before encrypting. Removed inLen param from chacha20CTR call.
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  2. Replaced the chacha20CTR function with a direct call to CCryptoBoring… 

    …SSL_CRYPTO_chacha_20.
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  3. Counter is now backed by a UInt32 instead of Data. Removed Sequence c… 

    …onformance.
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  4. Formatting

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Commits on Apr 14, 2023

  1. Formatting

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  2. Replaced unsafe code (unsafeBytes and load) with a more generic and s… 

    …afer UInt32 construction.
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  3. Replaced counterAsUInt32 definitions with integer literals to avoid s… 

    …ymmetric bugs in the load.
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  4. Merge branch 'apple:main' into feature/ChaCha20+Counter

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    btoms20 committed Apr 14, 2023
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Commits on Apr 17, 2023

  1. Updated _CryptoExtras/CMakeList.txt

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    btoms20 committed Apr 17, 2023
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