Character handling functions
| Function | Random masking | Consistent masking | Format-preserving encryption | Input data validation |
|---|---|---|---|---|
| Replace all | Yes | Yes | Yes | No |
| Replace the first n characters | Yes | Yes | Yes | No |
| Replace the last n characters | Yes | Yes | Yes | No |
| Replace characters between two positions | Yes | Yes | Yes | No |
| Replace all letters | Yes | Yes | Yes | No |
| Replace all digits | Yes | Yes | Yes | No |
| Keep the first n digits and replace following ones | Yes | Yes | Yes | No |
| Keep the last n digits and replace following ones | Yes | Yes | Yes | No |
| Keep characters between two positions | Yes | No | No | No |
| Remove the first n characters | Not applicable | Not applicable | Not applicable | Not applicable |
| Remove the last n characters | Not applicable | Not applicable | Not applicable | Not applicable |
| Remove characters between two positions | Not applicable | Not applicable | Not applicable | Not applicable |
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