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# SecPadding

The types of padding to use when you create or verify a digital signature.

```
struct SecPadding
```

## Topics

### Initializers

[`init(rawValue:)`](/documentation/Security/SecPadding/init(rawValue:))

### Constants

[`kSecPaddingNone`](/documentation/Security/SecPadding/kSecPaddingNone)

No padding.

[`sigRaw`](/documentation/Security/SecPadding/sigRaw)

[`PKCS1`](/documentation/Security/SecPadding/PKCS1)

PKCS1 padding.

[`OAEP`](/documentation/Security/SecPadding/OAEP)

[`PKCS1MD2`](/documentation/Security/SecPadding/PKCS1MD2)

Data to be signed is an MD2 hash.

[`PKCS1MD5`](/documentation/Security/SecPadding/PKCS1MD5)

Data to be signed is an MD5 hash.

[`PKCS1SHA1`](/documentation/Security/SecPadding/PKCS1SHA1)

Data to be signed is a SHA1 hash.

[`PKCS1SHA224`](/documentation/Security/SecPadding/PKCS1SHA224)

Data to be signed is a SHA224 hash.

[`PKCS1SHA256`](/documentation/Security/SecPadding/PKCS1SHA256)

Data to be signed is a SHA256 hash.

[`PKCS1SHA384`](/documentation/Security/SecPadding/PKCS1SHA384)

Data to be signed is a SHA384 hash.

[`PKCS1SHA512`](/documentation/Security/SecPadding/PKCS1SHA512)

Data to be signed is a SHA512 hash.


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