Key based encryption and Decryption in SQL Server












0














I am trying to convert a string to base 64 string and I was able to convert them using cast, but I need to use a key for encryption and during decryption the same key must be used. I don't have any idea about it. Have anyone tried it .



SELECT CAST('string' as varbinary(max)) FOR XML PATH(''), BINARY BASE64
For Base64 to string

SELECT CAST( CAST( 'c3RyaW5n' as XML ).value('.','varbinary(max)') AS varchar(max))









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  • did you see it ? mssqltips.com/sqlservertip/4903/…
    – Md. Zakir Hossain
    3 hours ago










  • Are you aware that Base 64 encoding has nothing to do with encryption? If you need encryption, you need to read up on the various mechanisms built into SQL Server for this and pick one that matches your threat model. Encryption isn't a magic wand and so you do need to have a threat model before you even start thinking about encryption. There's far too much to read and think about to fit on a Q&A site on this.
    – Damien_The_Unbeliever
    46 mins ago
















0














I am trying to convert a string to base 64 string and I was able to convert them using cast, but I need to use a key for encryption and during decryption the same key must be used. I don't have any idea about it. Have anyone tried it .



SELECT CAST('string' as varbinary(max)) FOR XML PATH(''), BINARY BASE64
For Base64 to string

SELECT CAST( CAST( 'c3RyaW5n' as XML ).value('.','varbinary(max)') AS varchar(max))









share|improve this question
























  • did you see it ? mssqltips.com/sqlservertip/4903/…
    – Md. Zakir Hossain
    3 hours ago










  • Are you aware that Base 64 encoding has nothing to do with encryption? If you need encryption, you need to read up on the various mechanisms built into SQL Server for this and pick one that matches your threat model. Encryption isn't a magic wand and so you do need to have a threat model before you even start thinking about encryption. There's far too much to read and think about to fit on a Q&A site on this.
    – Damien_The_Unbeliever
    46 mins ago














0












0








0







I am trying to convert a string to base 64 string and I was able to convert them using cast, but I need to use a key for encryption and during decryption the same key must be used. I don't have any idea about it. Have anyone tried it .



SELECT CAST('string' as varbinary(max)) FOR XML PATH(''), BINARY BASE64
For Base64 to string

SELECT CAST( CAST( 'c3RyaW5n' as XML ).value('.','varbinary(max)') AS varchar(max))









share|improve this question















I am trying to convert a string to base 64 string and I was able to convert them using cast, but I need to use a key for encryption and during decryption the same key must be used. I don't have any idea about it. Have anyone tried it .



SELECT CAST('string' as varbinary(max)) FOR XML PATH(''), BINARY BASE64
For Base64 to string

SELECT CAST( CAST( 'c3RyaW5n' as XML ).value('.','varbinary(max)') AS varchar(max))






sql sql-server






share|improve this question















share|improve this question













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edited 2 hours ago

























asked 3 hours ago









Srinivasan Rajasekaran

23519




23519












  • did you see it ? mssqltips.com/sqlservertip/4903/…
    – Md. Zakir Hossain
    3 hours ago










  • Are you aware that Base 64 encoding has nothing to do with encryption? If you need encryption, you need to read up on the various mechanisms built into SQL Server for this and pick one that matches your threat model. Encryption isn't a magic wand and so you do need to have a threat model before you even start thinking about encryption. There's far too much to read and think about to fit on a Q&A site on this.
    – Damien_The_Unbeliever
    46 mins ago


















  • did you see it ? mssqltips.com/sqlservertip/4903/…
    – Md. Zakir Hossain
    3 hours ago










  • Are you aware that Base 64 encoding has nothing to do with encryption? If you need encryption, you need to read up on the various mechanisms built into SQL Server for this and pick one that matches your threat model. Encryption isn't a magic wand and so you do need to have a threat model before you even start thinking about encryption. There's far too much to read and think about to fit on a Q&A site on this.
    – Damien_The_Unbeliever
    46 mins ago
















did you see it ? mssqltips.com/sqlservertip/4903/…
– Md. Zakir Hossain
3 hours ago




did you see it ? mssqltips.com/sqlservertip/4903/…
– Md. Zakir Hossain
3 hours ago












Are you aware that Base 64 encoding has nothing to do with encryption? If you need encryption, you need to read up on the various mechanisms built into SQL Server for this and pick one that matches your threat model. Encryption isn't a magic wand and so you do need to have a threat model before you even start thinking about encryption. There's far too much to read and think about to fit on a Q&A site on this.
– Damien_The_Unbeliever
46 mins ago




Are you aware that Base 64 encoding has nothing to do with encryption? If you need encryption, you need to read up on the various mechanisms built into SQL Server for this and pick one that matches your threat model. Encryption isn't a magic wand and so you do need to have a threat model before you even start thinking about encryption. There's far too much to read and think about to fit on a Q&A site on this.
– Damien_The_Unbeliever
46 mins ago

















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