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i have field in database. ex: field name. this field maybe more than 16 byte. how to encrypt data more than 16 byte without cbc, etc?
any function or another ways to do this?

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    $\begingroup$ Use stream cipher? What is the aim. Just store in the database? $\endgroup$ – kelalaka Oct 11 '18 at 17:14
  • $\begingroup$ This is an XY problem; lookup Format Preserving Encryption (or work around the solution by encrypting the database etc.). $\endgroup$ – Maarten Bodewes Oct 11 '18 at 17:18
  • $\begingroup$ AES without mode of operation operates on exactly 16 bytes, no more, no less. If you post your requirements, we could suggest a suitable mode of operation. $\endgroup$ – CodesInChaos Oct 12 '18 at 13:40
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A function that extends your fixed-size cipher to deal with larger inputs is exactly what is called a "Mode of Operation". So any function qualifying would in essence be a "Mode of Operation". There may be solutions if you tell us exactly why a Mode of Operation doesn't work for you

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  • $\begingroup$ BaseKing support 192 bits. So if the 192 bits enough this will be a solution. $\endgroup$ – kelalaka Oct 12 '18 at 10:35

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