asmhatreandClaude Sonnet 5.5
2e25042a68
Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01CifR2BE7PBvRy5hT8TS9oz
25 lines
1.2 KiB
Plaintext
25 lines
1.2 KiB
Plaintext
$ java --enable-preview -cp ... RoundTrip (27.0.1.0.2+1)
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== decode a public key, a private key and a certificate
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RSA X.509 2048 bits
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RSA PKCS#8
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CN=localhost issued by CN=pem-api demo CA
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== encode them again: the same text openssl wrote, apart from the line terminator
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PEMEncoder line terminator is CRLF: true; the openssl file uses LF: true
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ok: raw text differs from the file (CRLF vs LF)
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ok: public key re-encodes to identical text once CRLF is normalised to LF
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ok: private key re-encodes to identical text (LF-normalised)
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ok: certificate re-encodes to identical text (LF-normalised)
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== encode a key pair that was generated just now
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[-----BEGIN PRIVATE KEY-----, -----END PRIVATE KEY-----]
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line width of the Base64 body: 64
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ok: private scalar survives the round trip
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ok: public key survives the round trip
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ok: ...but the private key's own encoding is not byte-for-byte the same (the PKCS#8 now carries the public key)
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== what does decode(String) with no target class hand back?
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rsa-public.pem -> PublicKey RSA
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rsa-private-pkcs8.pem -> PrivateKey RSA
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ed25519-private.pem -> PrivateKey EdDSA
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server.pem -> X509Certificate CN=localhost
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rsa-private-encrypted.pem -> EncryptedPrivateKeyInfo PBEWithHmacSHA256AndAES_256
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exit=0
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