doc: public keys don't accept passphrases #16087
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cjihrig
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While crypto.publicDecrypt() and crypto.publicEncrypt() do accept a passphrase option, the C++ code simply ignores it because OpenSSL does not support it for public keys.
It does support it for private keys, and you can call both crypto.publicDecrypt() and crypto.publicEncrypt() with a private key, which will fail if it's encrypted and you don't provide a passphrase.
> var key = fs.readFileSync('private.pem', {encoding: 'ascii'});
> var data = new Buffer(15)
> crypto.publicEncrypt(key, data)
Error: error:06065064:digital envelope routines:EVP_DecryptFinal_ex:bad decrypt
at Object.publicEncrypt (crypto.js:388:12)
at repl:1:8
at ContextifyScript.Script.runInThisContext (vm.js:44:33)
at REPLServer.defaultEval (repl.js:239:29)
at bound (domain.js:301:14)
at REPLServer.runBound [as eval] (domain.js:314:12)
at REPLServer.onLine (repl.js:433:10)
at emitOne (events.js:120:20)
at REPLServer.emit (events.js:210:7)
at REPLServer.Interface._onLine (readline.js:278:10)
> crypto.publicEncrypt({ key: key, passphrase: 'whatever'}, data)
<Buffer 74 49 d9 b7 6b fe 8a 1a 53 0d c2 46 8f 75 7c b4 34 cf f0 4a b6 11 df 43 c8 8b e2 bc 1c f1 30 cd 95 2a 19 2f 82 87 4f 4f 6a 15 ca b5 16 9c 23 1c f5 8f ... >
>Since `crypto.publicDecrypt()` and `crypto.publicEncrypt()` accept both public and private keys, make it clear that the `passphrase` option only applies to private keys. Refs: nodejs#16038
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Okay, fair enough. I rewrote it more rigorously, PTAL. |
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Since `crypto.publicDecrypt()` and `crypto.publicEncrypt()` accept both public and private keys, make it clear that the `passphrase` option only applies to private keys. PR-URL: #16087 Ref: #16038 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Nikolai Vavilov <vvnicholas@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
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targos
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Since `crypto.publicDecrypt()` and `crypto.publicEncrypt()` accept both public and private keys, make it clear that the `passphrase` option only applies to private keys. PR-URL: #16087 Ref: #16038 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Nikolai Vavilov <vvnicholas@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
addaleax
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Since `crypto.publicDecrypt()` and `crypto.publicEncrypt()` accept both public and private keys, make it clear that the `passphrase` option only applies to private keys. PR-URL: nodejs/node#16087 Ref: nodejs/node#16038 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Nikolai Vavilov <vvnicholas@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
addaleax
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Since `crypto.publicDecrypt()` and `crypto.publicEncrypt()` accept both public and private keys, make it clear that the `passphrase` option only applies to private keys. PR-URL: nodejs/node#16087 Ref: nodejs/node#16038 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Nikolai Vavilov <vvnicholas@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
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While
crypto.publicDecrypt()andcrypto.publicEncrypt()do accept apassphraseoption, the C++ code simply ignores it because OpenSSL doesnot support it for public keys. Undocument the option.
Refs: #16038