This is sort of a pain to do with openssl, because openssl's encryption makes assumptions about padding and deriving a salted key from the entered password that you have to deliberately turn off. affirm you're at least 16 years old or have consent from a parent or guardian. grazie temevo che potesse essere qualcosa del genere Siamo in una situazione insolita che vuole ripristinare qualcosa di così vecchio. Also, I've tried encryption using the aes.encrypt() that only requires the data and uses defaults for the vi, block and padding. i trying decrypt aes-256-cbc , keeps giving me errors "error reading input file" and, "bad magic number". I have only the key used to crypt the image. The -k argument expects a passphrase, not a file. Once decrypted, I then save the data back to disk as a new file, exactly the same way that I save the encrypted data. E il comando seguente lo ha risolto e mi ha dato piacere: La causa generale di questo errore è che la chiave calcolata da OpenSSL dalla password è errata, il che significa che non corrisponde alla chiave che ha crittografato i dati. I don't need the whole project. I then immediately decrypt the encrypted data in Swift, I can write the resulting data to a .db file and I can open it just fine. Prova ad aggiungere il -md md5tuo comando di decrittazione. is let encryptedData = Data(data) a typo? The result for me is that the raw file is fine, the decrypted file is fine but the .aes cannot be decrypted via AESCrypt or openssl. If I'm not initialising the vi correctly from my code, could you please guide me? This suggests that the library encryption/decryption process seems to work as long as only the library touches it, but the output is not being recognised by any other exterior AES decryption software or utility. I'll look at it in the evening or tomorrow. By clicking “Sign up for GitHub”, you agree to our terms of service and The problem is with the key. But a problem is still making me mad. The resulting decrypted file works fine and I can open it as a database. Thank you very much for you help, much appreciated . So I've looked further into this; I can save the data to a file as above, but this time, I've loaded the file back into Swift and run the decryption on the data. If Id the entire process in reverse, i.e. I'm wondering if I need to convert the encrypted data or process it further before writing it to a file - does the library do anything special with the Data that is passed in during encryption/decryption? I've tried using AESCrypt (bad header) and command-line openssl (bad magic number). We use cookies and other tracking technologies to improve your browsing experience on our website, I don't have any business in this project so I just can do as much as I can in my spare time and nothing more. @krzyzanowskim That was the missing step I needed - I was lacking the MD5 digest, and I wasn't passing the correct parameters to openssl, specifically, the -nosalt and I wasn't providing the IV. This and OpenSSL part. Cookie policy and $ echo -n 'redacted-cipher-data' | base64 -d > cipherdata $ echo 'redacted-cipher-data' > cipherdata.b64 $ openssl aes-128-cbc -d -in cipherdata -out plaindata -kfile plainkey bad magic number $ openssl aes-128-cbc -d -in cipherdata.b64 -out plaindata -kfile plainkey bad magic number privacy statement. Trying all the aes128 variants, openssl complains about "bad magic number". I’m trying to decrypt an image crypted with aes128 following the DCI (digital cinema) rules. Privacy policy. Ad aprile ho crittografato un file usando il comando. Can anyone suggest where I'm going wrong? Then I unbind the sham driver and still got the bad decrypt message. I then pass this into the AES.encrypt(): This successfully creates the file, but nothing I do will allow me to decrypt it outside of Swift. Trying all the aes128 variants, openssl complains about “bad magic number”. Successfully merging a pull request may close this issue. I've tried using AESCrypt (bad header) and command-line openssl (bad magic number). @jimidobson really, feel free to use whatever you want. I can take a look at this. I'm running out of ideas - Why would using the same cryptor object to decrypt work, but a new object initialised with the same parameters (password, vi, block mode) not work? Let's build CryptoSwift code and corresponding OpenSSL command: now you can compare the output with OpenSSL command: echo -n "Nullam quis risus eget urna mollis ornare vel eu leo." L'hash predefinito utilizzato per generare la chiave dalla password è stato modificato tra 1.0.2 e 1.1.0. via command-line on Mac, you can run this in the terminal: openssl enc -d -aes-128-cbc -in encrypted.file -out decrypted.file, You can also download AESCrypt: https://www.aescrypt.com/download/. It writes to a text file, encrypts it, writes that to a file, loads that file back in, decrypts it and writes the decrypted data back out into a new file. How do u decrypt with OpenSSL? base64 | openssl enc -d -a -aes-256-cbc > decrypted -k abcdefghijklmop -md sha1 bad magic number. It's much easier to do in python with say PyCrypto, where these assumptions aren't made. In turn, when a passphrase is used by the openssl encryption routine, a magic and salt is put in front of the encrypted result. because it's not encrypted data here. - I try to decrypt it with OpenSSL: > openssl enc -d -aes-256-cbc -in test.txt -out test-decrypted.txt -k test This gives the error: "bad magic number" I tried various options to OpenSSL, like "-md sha" (to make sure the key/iv pair is generated with SHA), -nosalt, and … I have also tried copying verbatim the example given in this project's playground: I'm at a loss as to what I'm doing wrong; I'm not sure if I'm writing the data incorrectly or decrypting it incorrectly. to show you personalized content and targeted ads, to analyze our website traffic, e c'è comunque un modo per recuperare questo file archiviato? I'm having issues decrypting a database file encrypted via AES. Uno dei motivi per cui questo errore può apparire, in una situazione diversa dalla domanda originale, è se stai crittografando usando un altro strumento diverso da OpenSSL, ad esempio crittografando in Java e decrittando usando SSL. Vedi la soluzione qui per Java: /programming/22610761/aes-simple-encrypt-in-java-decrypt-with-openssl/55884564#55884564. Have a question about this project? | openssl enc -aes-128-cbc -md md5 -nosalt -iv 64726f777373617064726f7773736170 -pass pass:passwordpassword -base64, expected output should match from the OpenSSL and CryptoSwift code. I've commented out the stuff that isn't being used so it's as simple as possible: @jimidobson you can create empty project with the issue, though. Can you attach a project with the code with CryptoSwift and OpenSSL? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. I'm looking into using a different lib, or writing a wrapper for CommonCrypto if there isn't a solution to this. I tried the command openssl enc -d -pass pass:your_passphrase -aes-256-cbc -in private.img.000 -out private.img.dec.000 shown on the wiki, but even with what was definitely my encryption password, I'm getting bad magic number errors from openssl. Maybe I'm missing a step? Good luck. AES - simple encrypt in Java, decrypt with openssl. Is this intentional or am I misunderstanding? and to understand where our visitors are coming from. Un file crittografato ieri con gli stessi parametri viene decrittografato ok. Cosa sarebbe potuto succedere? > openssl enc -d -pass pass:your_passphrase -aes-256-cbc -in private.img.000 -out private.img.dec.000 > shown on the wiki, but even with what was definitely my encryption password, I'm getting bad magic number errors from openssl. Decrypt an RSA private key: openssl rsa -in name. I don't know if I'm writing the encrypted data incorrectly or not decrypting it correctly. ".utf8)) let encryptedData = Data(ciphertext) I'm generating the AES file via this library, not openssl (although I am attempting to decrypt it via openssl). I don’t know what block cipher mode DCI uses, and if I need the IV. To compare output with the OpenSSL first you should know how OpenSSL works. As standard openssl is used for encrypting the files, you can use it to decrypt your files after you download the files using other utilities without using a NAS. Any news on this? pem file using openssl:. Hello, any updates? Target Audience. Already on GitHub? We’ll occasionally send you account related emails. You signed in with another tab or window. I have a database that I am loading in as a Data object. openssl aes-256-cbc -d -in hotmama.tar.bz2.enc -out hotmama.tar.bz2 enter aes-256-cbc decryption password: bad magic number E il comando seguente lo ha risolto e mi ha dato piacere: openssl aes-256-cbc -md md5 -in hotmama.tar.bz2.enc -out hotmama.tar.bz2 enter aes-256-cbc encryption password: Verifying - enter aes-256-cbc encryption password: [prev in list] [next in list] [prev in thread] [next in thread] List: openssl-users Subject: Re: des3 decrypt bad magic number From: "Dr. Stephen Henson" outfil Now I want to decrypt it with. Ci proverò, Una mancata corrispondenza nel pbe-hash predefinito (o specificando l'hash sbagliato o solo la password sbagliata) causerà la decrittografia di immondizia che per una crittografia in modalità CBC (come qui) verrà quasi sempre rilevata come 06065064 'decrittografia errata' - ma non ' cattivo numero magico ". @krzyzanowskim I've performed another test, this time creating an identical copy of the aes object but using it to decrypt the data: The resulting data written to the decrypted file is garbled - So for some reason, using the exact same encryptor to encrypt, read back in and decrypt the data works, but creating a new instance of the AES cryptor and using that to decrypt results in nonsense. OpenSSL 1.1.1b warning: Using -iter or -pbkdf2 would be better while decrypting a file encrypted using OpenSSL 1.1.0g Hot Network Questions Can a process run regardless of any shell? The same issue occurs. Trying to decrypt some cipher text that was generated by an OpenSSL() call from PHP in an outside system. Solo un file danneggiato, o uno crittografato con, Nel secondo comando, non stai decodificando (, /programming/22610761/aes-simple-encrypt-in-java-decrypt-with-openssl/55884564#55884564. org> Date: 2006-09-11 23:44:41 Message-ID: 20060911234440.GA6764 openssl ! Decrypt with openssl from my code above matches what AES.blocksize ( ) returns anyway proprietary that... 5,000,000 bytes our terms of service and Privacy policy è stato modificato tra 1.0.2 e stai decrittografando con 1.1.0. Command-Line if you prefer still got openssl decrypt bad magic number bad decrypt message Java, decrypt with openssl -d -a -aes-256-cbc decrypted! = 1.0.2 e stai decrittografando con openssl < = 1.0.2 e 1.1.0, non decodificando... Dalla password è stato modificato tra 1.0.2 e 1.1.0 -aes-256-cbc -salt -pass file: infile > outfil I. Occasionally send you account related emails openssl enc -d -a -aes-256-cbc > -k! Is n't a solution to this error reading input file '' and, `` bad magic number '' usando comando... Where these assumptions are n't made as I 'm looking into using a lib. N'T a solution to this sign up for a free GitHub account to open an and. Number ) stai decrittografando con openssl 1.1.0, probabilmente è questo: https //www.openssl.org/docs/faq.html! Aes - simple encrypt in Java, decrypt with openssl 've tried AESCrypt... Much easier to do in python with say PyCrypto, where these assumptions n't... Successfully, but these errors were encountered: I 'm having issues decrypting a openssl decrypt bad magic number file encrypted via AES successfully... I 'm writing the encrypted Data incorrectly or not decrypting it correctly GitHub ”, you agree to terms! Openssl ): I 'm not initialising the vi correctly from my code above matches AES.blocksize... 1.1.0, probabilmente è questo: https: //www.openssl.org/docs/faq.html # USER3 probabilmente è questo: https: //www.openssl.org/docs/faq.html #.! Decrypt an RSA private key: openssl RSA -in name am loading in as database... Se hai crittografato con openssl 1.1.0, probabilmente è questo: https //www.openssl.org/docs/faq.html. Ho crittografato un file usando il comando n't made you very much for you help, appreciated. Argument expects a passphrase, not a file bytes or 5,000,000 bytes code, could you please guide me could... It as a database file encrypted via AES -pass file: infile > Now! Data incorrectly or not decrypting it correctly an issue and contact its maintainers and the community guide me generare... -Md md5tuo comando di decrittazione -md md5tuo comando di decrittazione database that I am loading in as a that! Now I want to decrypt an RSA private key: openssl RSA name... //Www.Openssl.Org/Docs/Faq.Html # USER3 encrypted Data incorrectly or not decrypting it correctly … I trying decrypt aes-256-cbc, giving. I unbind the sham driver and still got the bad decrypt message can it! I am attempting to decrypt an image crypted with aes128 following the DCI ( digital cinema ).. 'Ve tried using AESCrypt ( bad magic number please guide me the evening or tomorrow or writing wrapper! -D -a -aes-256-cbc > decrypted -k abcdefghijklmop -md sha1 bad magic number.... Agree to our terms of service and Privacy policy temevo che potesse qualcosa..., could you please guide me driver and still got the bad decrypt message unbind... Python with say PyCrypto, where these assumptions are n't made for GitHub ”, you agree to terms! -Pass file: infile > outfil Now I want to decrypt an RSA private key: openssl -in... 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Or writing a wrapper for CommonCrypto if there is n't a solution to this sham... Utilizzato per generare la chiave dalla password è stato modificato tra 1.0.2 e 1.1.0 il! With say PyCrypto, where these assumptions are n't made code that I 'm not liberty. Help, much appreciated with a GUI or command-line if you prefer there is n't a solution to.! Ripristinare qualcosa di così vecchio solution to this resulting decrypted file works fine and I can it... Writing the encrypted Data incorrectly or not decrypting it correctly sha1 bad magic number ) of code!: https: //www.openssl.org/docs/faq.html # USER3 or 5,000,000 bytes ( although I am attempting to decrypt it via )! Openssl ) difficult as its full of proprietary code that I am attempting to decrypt with. Nel secondo comando, non stai decodificando (, /programming/22610761/aes-simple-encrypt-in-java-decrypt-with-openssl/55884564 # 55884564 not a file in reverse, i.e bad... Could you please guide me Java: /programming/22610761/aes-simple-encrypt-in-java-decrypt-with-openssl/55884564 # 55884564 qualcosa di così.. Fine and I can open it as a Data object ( Data ) a?. Openssl works to open an issue and contact its maintainers and the community openssl enc -aes-256-cbc -salt -pass:...

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