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com.aspose.pdf

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java.lang.Object
- com.aspose.pdf.Signature
- - com.aspose.pdf.PKCS1

```
public final class PKCS1
extends Signature
```
Represents signature object regarding PKCS#1 standard. RSA encryption algorithm and SHA-1 digest method are used for signing.

Constructor Summary

Constructors
Constructor and Description
`PKCS1()` Inititalizes new instance of the `PKCS1` class.
`PKCS1(InputStream image)` Initializes new instance of the `PKCS1` class.
`PKCS1(InputStream pfx, String password)` Inititalizes new instance of the `PKCS1` class.
`PKCS1(String pfx, String password)` Inititalizes new instance of the `PKCS1` class.

Method Summary
- Methods inherited from class com.aspose.pdf.Signature
  close, getAuthority, getByteRange, getContactInfo, getCustomAppearance, getDate, getImageInternal, getLocation, getReason, getSignatureReferences, getTimestampSettings, isShowProperties, setAuthority, setContactInfo, setCustomAppearance, setDate, setImage, setImageInternal, setLocation, setReason, setShowProperties, setTimestampSettings, verify
- Methods inherited from class java.lang.Object
  equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - PKCS1
```
public PKCS1(InputStream image)
```
    Initializes new instance of the PKCS1 class.
    
    Parameters:
    
    image - This image will define signature appearance on the page.
  - PKCS1
```
public PKCS1()
```
    Inititalizes new instance of the PKCS1 class.
  - PKCS1
```
public PKCS1(String pfx,
             String password)
```
    Inititalizes new instance of the PKCS1 class.
    
    Parameters:
    
    pfx - Pfx file which contains certificate for signing.
    
    password - Password for certificate.
  - PKCS1
```
public PKCS1(InputStream pfx,
             String password)
```
    Inititalizes new instance of the PKCS1 class.
    
    Parameters:
    
    pfx - Stream with certificate data organized as pfx.
    
    password - Password to get access to the private key in the certificate.