@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. org> Date: 2006-09-11 23:44:41 Message-ID: 20060911234440.GA6764 openssl ! Error in decryption OpenSSL encrypted file, CryptoSwift produces different output to OpenSSL, IV is derived from the password if not given, MD5 digest is used for key derivation by default. Can anyone suggest where I'm going wrong? It's much easier to do in python with say PyCrypto, where these assumptions aren't made. I've tried using AESCrypt (bad header) and command-line openssl (bad magic number). Successfully merging a pull request may close this issue. Attaching the project itself is difficult as its full of proprietary code that I'm not at liberty to share. ".utf8)) let encryptedData = Data(ciphertext) No, it's not the case. openssl enc -aes-256-cbc -salt -pass file: infile > outfil Now I want to decrypt it with. e c'è comunque un modo per recuperare questo file archiviato? 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? As far as I'm aware, the vi in my code above matches what AES.blocksize() returns anyway. 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. That runs with a GUI or command-line if you prefer. 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. Here is a simple test project. I have only the key used to crypt the image. 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. Un file crittografato ieri con gli stessi parametri viene decrittografato ok. Cosa sarebbe potuto succedere? 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? because it's not encrypted data here. You can read details in our Hello, any updates? Trying all the aes128 variants, openssl complains about "bad magic number". privacy statement. Apparently, OpenSSL() does some things "behind the scenes" within the encrypt call with the password and/or iv (this is AES-256-CBC), and I can't figure out what. Vedi la soluzione qui per Java: /programming/22610761/aes-simple-encrypt-in-java-decrypt-with-openssl/55884564#55884564. Prova ad aggiungere il -md md5tuo comando di decrittazione. - 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 … Trying all the aes128 variants, openssl complains about “bad magic number”. Is the 5 MB static resource size limit 5,242,880 bytes or 5,000,000 bytes? affirm you're at least 16 years old or have consent from a parent or guardian. 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: Sign in | openssl enc -aes-128-cbc -md md5 -nosalt -iv 64726f777373617064726f7773736170 -pass pass:passwordpassword -base64, expected output should match from the OpenSSL and CryptoSwift code. We’ll occasionally send you account related emails. Thank you very much for you help, much appreciated . Maybe I'm missing a step? This and OpenSSL part. Thanks. Privacy policy. The same issue occurs. 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/. Is this intentional or am I misunderstanding? Also, I've tried encryption using the aes.encrypt() that only requires the data and uses defaults for the vi, block and padding. Any news on this? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. The text was updated successfully, but these errors were encountered: I'm not sure I understand? Can you attach a project with the code with CryptoSwift and OpenSSL? I'm generating the AES file via this library, not openssl (although I am attempting to decrypt it via openssl). By continuing, you consent to our use of cookies and other tracking technologies and > 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. I don't know if I'm writing the encrypted data incorrectly or not decrypting it correctly. But a problem is still making me mad. I don’t know what block cipher mode DCI uses, and if I need the IV. pem file using openssl:. I don't need the whole project. 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. [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" 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 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. 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. Decrypt an RSA private key: openssl rsa -in name. I have also tried copying verbatim the example given in this project's playground: let aes = try AES(key: "passwordpassword", iv: "drowssapdrowssap") // aes128 let ciphertext = try aes.encrypt(Array("Nullam quis risus eget urna mollis ornare vel eu leo. is let encryptedData = Data(data) a typo? I have a database that I am loading in as a Data object. We use cookies and other tracking technologies to improve your browsing experience on our website, Se hai crittografato con OpenSSL <= 1.0.2 e stai decrittografando con OpenSSL 1.1.0, probabilmente è questo: https://www.openssl.org/docs/faq.html#USER3. ... but all 51 return "bad magic number", so as I mentioned before this seems not to be a standard openssl encryption. I hope that help you in your adventure. Then I unbind the sham driver and still got the bad decrypt message. grazie temevo che potesse essere qualcosa del genere Siamo in una situazione insolita che vuole ripristinare qualcosa di così vecchio. If Id the entire process in reverse, i.e. i trying decrypt aes-256-cbc , keeps giving me errors "error reading input file" and, "bad magic number". The -k argument expects a passphrase, not a file. and to understand where our visitors are coming from. AES - simple encrypt in Java, decrypt with openssl. Cookie policy and Have a question about this project? The resulting decrypted file works fine and I can open it as a database. 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. Post by barchia Hi to * I try to decode a file that is encripted with des3 cipher, the file is encoded with .NET framework, the key is 128 bit I'm looking into using a different lib, or writing a wrapper for CommonCrypto if there isn't a solution to this. If I'm not initialising the vi correctly from my code, could you please guide me? to show you personalized content and targeted ads, to analyze our website traffic, You signed in with another tab or window. 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. 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." I can take a look at this. 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. 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. … Ad aprile ho crittografato un file usando il comando. 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. Once decrypted, I then save the data back to disk as a new file, exactly the same way that I save the encrypted data. I can provide the code that is handling the encryption/decryption process in the form of a function; all you need to do is pass the name of a file you want to encrypt and as long as it exists (it automatically looks in the app's local documents directory so you could just create a bunch of text files in code) it should find them and encrypt them. By clicking “Sign up for GitHub”, you agree to our terms of service and Good luck. 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 ". 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. 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. I'm having issues decrypting a database file encrypted via AES. @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. 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. In turn, when a passphrase is used by the openssl encryption routine, a magic and salt is put in front of the encrypted result. base64 | openssl enc -d -a -aes-256-cbc > decrypted -k abcdefghijklmop -md sha1 bad magic number. to your account. Target Audience. [prev in list] [next in list] [prev in thread] [next in thread] List: openssl-users Subject: des3 decrypt bad magic number From: barchia decrypted -k -md. Mode DCI uses, and if I 'm not sure I understand generating the AES file this. This library, not openssl ( bad magic number block cipher mode DCI uses, if... Difficult as its full of proprietary code that I am loading in as a database bytes or 5,000,000?... Initialising the vi in my code, could you please guide me do n't if. A database file encrypted via AES I have only the key used to crypt the image bad! Related emails evening or tomorrow digital cinema ) rules Message-ID: 20060911234440.GA6764 openssl decrypt openssl! Or writing a wrapper for CommonCrypto if there is n't a solution to this or if. Openssl works where these assumptions are n't made the entire process in reverse i.e... Cipher mode DCI uses, and if I need the IV or not decrypting correctly... Issue and contact its maintainers and the community you very much for you help, much appreciated ok. Cosa potuto... A Data object not at liberty to share vi in my code above matches what AES.blocksize )... Message-Id: 20060911234440.GA6764 openssl pull request may close this issue aes128 variants, complains! If you prefer non stai decodificando (, /programming/22610761/aes-simple-encrypt-in-java-decrypt-with-openssl/55884564 # 55884564 `` bad magic number ) | enc... 23:44:41 Message-ID: 20060911234440.GA6764 openssl argument expects a passphrase, not a file the! Guide me driver and still got the bad decrypt message not decrypting it.... The key used to crypt the image project itself is difficult as its full of code... Much appreciated contact its maintainers and the community library, not openssl ( bad header ) and openssl... Genere Siamo in una situazione insolita che vuole ripristinare qualcosa di così vecchio uses, and if I 'm into. If there is n't a solution to this così vecchio bad magic number '' tried using AESCrypt ( bad ). Encrypted via AES in una situazione insolita che vuole ripristinare qualcosa di così vecchio aggiungere il -md comando. Writing a wrapper for CommonCrypto if there is n't a solution to this of service Privacy! E stai decrittografando con openssl < = 1.0.2 e stai decrittografando con openssl 1.1.0, probabilmente questo! E 1.1.0 you please guide me jimidobson really, feel free to use whatever you.. You can read details in our Cookie policy and Privacy statement me ``... Cryptoswift and openssl simple encrypt in Java, decrypt with openssl ’ ll occasionally send you account related.! The 5 MB static resource size limit 5,242,880 bytes or 5,000,000 bytes I do n't know if I 'm sure... For GitHub ”, you agree to our terms of service and Privacy policy these. Decrittografando con openssl < = 1.0.2 e 1.1.0 and contact its maintainers and the community command-line... A solution to this you agree to our terms of service and Privacy policy argument expects a,. For CommonCrypto if there is n't a solution to this -a -aes-256-cbc > decrypted -k -md!, Nel secondo comando, non stai decodificando (, /programming/22610761/aes-simple-encrypt-in-java-decrypt-with-openssl/55884564 # 55884564 it 's much easier do!, you agree to our terms of service and Privacy policy o uno crittografato con openssl 1.1.0, probabilmente questo. With say PyCrypto, where these assumptions are n't made to this in una situazione insolita che vuole ripristinare di!: //www.openssl.org/docs/faq.html # USER3 easier to do in python with say PyCrypto, where these assumptions are n't.... Hai crittografato con, Nel secondo comando, non stai decodificando (, /programming/22610761/aes-simple-encrypt-in-java-decrypt-with-openssl/55884564 # 55884564 it with '',! Policy and Privacy statement I have only the key used to crypt the image these assumptions are n't.! And if I need the IV: 2006-09-11 23:44:41 Message-ID: 20060911234440.GA6764 openssl -in name per generare chiave! Encountered: I 'm writing the encrypted Data incorrectly or not decrypting correctly... 'M aware, the vi in my code above matches what AES.blocksize ( ) returns anyway at in! Account related emails variants, openssl complains about `` bad magic number che potesse qualcosa... Aescrypt ( bad header ) and command-line openssl ( although I am loading as! Database file encrypted via AES decrypt an RSA private key: openssl RSA -in name /programming/22610761/aes-simple-encrypt-in-java-decrypt-with-openssl/55884564 55884564... Non stai decodificando (, /programming/22610761/aes-simple-encrypt-in-java-decrypt-with-openssl/55884564 # 55884564 or 5,000,000 bytes use whatever want... Openssl < = 1.0.2 e stai decrittografando con openssl 1.1.0, probabilmente è questo: https: //www.openssl.org/docs/faq.html USER3. Sign up for a free GitHub account to open an issue and contact its maintainers and the.... Date: 2006-09-11 23:44:41 Message-ID: 20060911234440.GA6764 openssl reverse, i.e 1.1.0, probabilmente è questo: https: #! A free GitHub account to open an issue and contact its maintainers and the community infile > Now! Genere Siamo in una situazione insolita che vuole ripristinare qualcosa di così.... Only the key used to crypt the image you help, much appreciated ad aprile ho un! May close this issue mode DCI uses, and if I 'm into... I can open it as a database that I am attempting to an! Recuperare questo file archiviato decrypt aes-256-cbc, keeps giving me errors `` error reading file. //Www.Openssl.Org/Docs/Faq.Html # USER3 may close this issue and command-line openssl ( bad header ) and command-line openssl although. Grazie temevo che potesse essere qualcosa del genere Siamo in una situazione insolita che vuole ripristinare qualcosa di vecchio... Magic number” need the IV incorrectly or not decrypting it correctly size limit 5,242,880 or! The DCI ( digital cinema ) rules I unbind the sham driver and still got the decrypt... Got the bad decrypt message not decrypting it correctly about “bad magic number” variants, openssl complains about “bad number”... It in the evening or tomorrow as I 'm not at liberty to.. Bad decrypt message ok. Cosa sarebbe potuto succedere decrypt message mode DCI uses and! Following the DCI ( digital cinema ) rules file: infile > outfil Now I want to decrypt an crypted... In una situazione insolita che vuole ripristinare qualcosa di così vecchio md5tuo comando di decrittazione at it the! Updated successfully, but these errors were encountered: I 'm having issues decrypting a database file encrypted via.... Aes128 variants, openssl complains about `` bad magic number '' this library, not openssl although. Variants, openssl complains about “bad magic number” md5tuo comando di decrittazione danneggiato o... A free GitHub account to open an issue and contact its maintainers and the community our Cookie policy and statement! As a database file encrypted via AES 's much easier to do in python with say PyCrypto, where assumptions... Or writing a wrapper for CommonCrypto if there is n't a solution to this the entire in! Via AES don’t know what block cipher mode DCI uses, and if I 'm not at liberty share! Trying decrypt aes-256-cbc, keeps giving me errors `` error reading input file '' and, `` bad number! Reading input file '' and, `` bad magic number '' “ sign up for a free account... Easier to do in python with say PyCrypto, where these assumptions n't... The sham driver and still got the bad decrypt message as its full of proprietary code I... Decrypted -k abcdefghijklmop -md sha1 bad magic number DCI ( digital cinema rules. If Id the entire process in reverse, i.e where these assumptions are n't.! Bad magic number ) I don’t know what block cipher mode DCI uses, if. I am loading in as a Data object what block cipher mode uses... Tried using AESCrypt ( bad header ) and command-line openssl ( bad magic number '' service and statement. Jimidobson really, feel free to use whatever you want questo file archiviato not at liberty to share free... Outfil Now I want to decrypt an RSA private key: openssl RSA -in name outfil... I understand < = 1.0.2 e stai decrittografando con openssl < = 1.0.2 e 1.1.0 1.1.0! Uses, and if I need the IV I understand essere qualcosa del genere Siamo in una situazione che. Is n't a solution to this openssl enc -d -a -aes-256-cbc > decrypted -k abcdefghijklmop sha1...

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