github-code-scanning[bot] commented on code in PR #332: URL: https://github.com/apache/commons-compress/pull/332#discussion_r1033168787
########## src/main/java/org/apache/commons/compress/archivers/sevenz/AES256SHA256Decoder.java: ########## @@ -126,4 +114,99 @@ } }; } + + @Override + OutputStream encode(OutputStream out, Object options) throws IOException { + return new OutputStream() { + private boolean isInitialized; + private CipherOutputStream cipherOutputStream; + + private CipherOutputStream init() throws IOException { + if (isInitialized) { + return cipherOutputStream; + } + + AES256Options opts = (AES256Options) options; + final byte[] aesKeyBytes = sha256Password(opts.password, opts.numCyclesPower, opts.salt); + + final SecretKey aesKey = new SecretKeySpec(aesKeyBytes, "AES"); + try { + final Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); // padding required for very small files (< 16 bytes) Review Comment: ## Use of a broken or risky cryptographic algorithm Cryptographic algorithm [AES/CBC/PKCS5Padding](1) is weak and should not be used. [Show more details](https://github.com/apache/commons-compress/security/code-scanning/104) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@commons.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org