ASN1 (Red Hat JBoss Enterprise Application Platform 7.4.0.GA public API)

java.lang.Object
- org.wildfly.security.asn1.ASN1

```
public class ASN1
extends Object
```
A class that contains ASN.1 constants and utilities.

Author:

Farah Juma

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`APPLICATION_SPECIFIC_MASK` Mask used to determine if a type tag is application-specific.
`static int`	`BIT_STRING_TYPE` The universal bit string type tag.
`static int`	`BMP_STRING_TYPE` The universal BMP (UTF-16 big-endian) string type tag.
`static int`	`BOOLEAN_TYPE` The universal boolean type tag.
`static int`	`CLASS_MASK` Mask used to obtain the class bits from a type tag.
`static int`	`CONSTRUCTED_MASK` Mask used to determine if a type tag is constructed.
`static int`	`CONTEXT_SPECIFIC_MASK` Mask used to determine if a type tag is context-specific.
`static int`	`GENERALIZED_TIME_TYPE` A type for representing timestamps.
`static int`	`IA5_STRING_TYPE` The universal IA5 string type tag.
`static int`	`INTEGER_TYPE` The universal integer type tag.
`static int`	`NULL_TYPE` The universal null type tag.
`static int`	`OBJECT_IDENTIFIER_TYPE` The universal object identifier type tag.
`static int`	`OCTET_STRING_TYPE` The universal octet string type tag.
`static String`	`OID_DSA` Algorithm ID for DSA keys used for any purpose.
`static String`	`OID_EC` Algorithm ID for EC keys used for any purpose.
`static String`	`OID_EXTENSION_REQUEST` Object identifier for the PKCS #9 `extensionRequest` attribute.
`static String`	`OID_MD2` Object identifier for the MD2 hash algorithm.
`static String`	`OID_MD2_WITH_RSA` Object identifier for the MD2 with RSA signature algorithm.
`static String`	`OID_MD4_WITH_RSA` Object identifier for the MD4 with RSA signature algorithm.
`static String`	`OID_MD5` Object identifier for the MD5 hash algorithm.
`static String`	`OID_MD5_WITH_RSA` Object identifier for the MD5 with RSA signature algorithm.
`static String`	`OID_RSA` Algorithm ID for RSA keys used for any purpose.
`static String`	`OID_SHA1` Object identifier for the SHA1 hash algorithm.
`static String`	`OID_SHA1_WITH_DSA` Object identifier for the SHA1 with DSA signature algorithm.
`static String`	`OID_SHA1_WITH_ECDSA` Object identifier for the SHA1 with ECDSA signature algorithm.
`static String`	`OID_SHA1_WITH_RSA` Object identifier for the SHA1 with RSA signature algorithm.
`static String`	`OID_SHA224_WITH_ECDSA` Object identifier for the SHA-225 with ECDSA signature algorithm.
`static String`	`OID_SHA256_WITH_DSA` Object identifier for the SHA256 with DSA signature algorithm.
`static String`	`OID_SHA256_WITH_ECDSA` Object identifier for the SHA-256 with ECDSA signature algorithm.
`static String`	`OID_SHA256_WITH_RSA` Object identifier for the SHA-256 with RSA signature algorithm.
`static String`	`OID_SHA384_WITH_ECDSA` Object identifier for the SHA-384 with ECDSA signature algorithm.
`static String`	`OID_SHA384_WITH_RSA` Object identifier for the SHA-384 with RSA signature algorithm.
`static String`	`OID_SHA512_WITH_ECDSA` Object identifier for the SHA-512 with ECDSA signature algorithm.
`static String`	`OID_SHA512_WITH_RSA` Object identifier for the SHA-512 with RSA signature algorithm.
`static int`	`PRINTABLE_STRING_TYPE` The universal printable string type tag.
`static int`	`SEQUENCE_TYPE` The universal sequence type tag.
`static int`	`SET_TYPE` The universal set type tag.
`static int`	`TAG_NUMBER_MASK` Mask used to obtain the tag number bits from a type tag.
`static int`	`UNIVERSAL_STRING_TYPE` The universal (UTF-32 big-endian) string type tag.
`static int`	`UTF8_STRING_TYPE` The universal UTF-8 string type tag.

Constructor Summary

Constructors
Constructor and Description

ASN1()

Constructors
Constructor and Description
`ASN1()`

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static String`	`formatAsn1(ASN1Decoder decoder)` Format an AS.1 string from the given decoder as a string.
`static void`	`formatAsn1(ASN1Decoder decoder, StringBuilder builder)` Format an ASN.1 string from the given decoder as a string.
`static String`	`keyAlgorithmFromOid(String oid)` Resolves a key algorithm based on a given `oid`.
`static String`	`oidFromSignatureAlgorithm(String algorithmName)`
`static String`	`signatureAlgorithmFromOid(String oid)`
`static void`	`validatePrintableByte(int b)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - BOOLEAN_TYPE
```
public static final int BOOLEAN_TYPE
```
    The universal boolean type tag.
    
    See Also:
    
    Constant Field Values
  - INTEGER_TYPE
```
public static final int INTEGER_TYPE
```
    The universal integer type tag.
    
    See Also:
    
    Constant Field Values
  - BIT_STRING_TYPE
```
public static final int BIT_STRING_TYPE
```
    The universal bit string type tag.
    
    See Also:
    
    Constant Field Values
  - OCTET_STRING_TYPE
```
public static final int OCTET_STRING_TYPE
```
    The universal octet string type tag.
    
    See Also:
    
    Constant Field Values
  - NULL_TYPE
```
public static final int NULL_TYPE
```
    The universal null type tag.
    
    See Also:
    
    Constant Field Values
  - OBJECT_IDENTIFIER_TYPE
```
public static final int OBJECT_IDENTIFIER_TYPE
```
    The universal object identifier type tag.
    
    See Also:
    
    Constant Field Values
  - UTF8_STRING_TYPE
```
public static final int UTF8_STRING_TYPE
```
    The universal UTF-8 string type tag.
    
    See Also:
    
    Constant Field Values
  - PRINTABLE_STRING_TYPE
```
public static final int PRINTABLE_STRING_TYPE
```
    The universal printable string type tag.
    
    See Also:
    
    Constant Field Values
  - IA5_STRING_TYPE
```
public static final int IA5_STRING_TYPE
```
    The universal IA5 string type tag.
    
    See Also:
    
    Constant Field Values
  - GENERALIZED_TIME_TYPE
```
public static final int GENERALIZED_TIME_TYPE
```
    A type for representing timestamps.
    
    See Also:
    
    Constant Field Values
  - UNIVERSAL_STRING_TYPE
```
public static final int UNIVERSAL_STRING_TYPE
```
    The universal (UTF-32 big-endian) string type tag.
    
    See Also:
    
    Constant Field Values
  - BMP_STRING_TYPE
```
public static final int BMP_STRING_TYPE
```
    The universal BMP (UTF-16 big-endian) string type tag.
    
    See Also:
    
    Constant Field Values
  - SEQUENCE_TYPE
```
public static final int SEQUENCE_TYPE
```
    The universal sequence type tag.
    
    See Also:
    
    Constant Field Values
  - SET_TYPE
```
public static final int SET_TYPE
```
    The universal set type tag.
    
    See Also:
    
    Constant Field Values
  - CONSTRUCTED_MASK
```
public static final int CONSTRUCTED_MASK
```
    Mask used to determine if a type tag is constructed.
    
    See Also:
    
    Constant Field Values
  - APPLICATION_SPECIFIC_MASK
```
public static final int APPLICATION_SPECIFIC_MASK
```
    Mask used to determine if a type tag is application-specific.
    
    See Also:
    
    Constant Field Values
  - CONTEXT_SPECIFIC_MASK
```
public static final int CONTEXT_SPECIFIC_MASK
```
    Mask used to determine if a type tag is context-specific.
    
    See Also:
    
    Constant Field Values
  - CLASS_MASK
```
public static final int CLASS_MASK
```
    Mask used to obtain the class bits from a type tag.
    
    See Also:
    
    Constant Field Values
  - TAG_NUMBER_MASK
```
public static final int TAG_NUMBER_MASK
```
    Mask used to obtain the tag number bits from a type tag.
    
    See Also:
    
    Constant Field Values
  - OID_SHA1_WITH_DSA
```
public static final String OID_SHA1_WITH_DSA
```
    Object identifier for the SHA1 with DSA signature algorithm.
    
    See Also:
    
    Constant Field Values
  - OID_SHA256_WITH_DSA
```
public static final String OID_SHA256_WITH_DSA
```
    Object identifier for the SHA256 with DSA signature algorithm.
    
    Since:
    
    1.2.0
    
    See Also:
    
    Constant Field Values
  - OID_SHA1_WITH_ECDSA
```
public static final String OID_SHA1_WITH_ECDSA
```
    Object identifier for the SHA1 with ECDSA signature algorithm.
    
    See Also:
    
    Constant Field Values
  - OID_SHA224_WITH_ECDSA
```
public static final String OID_SHA224_WITH_ECDSA
```
    Object identifier for the SHA-225 with ECDSA signature algorithm.
    
    See Also:
    
    Constant Field Values
  - OID_SHA256_WITH_ECDSA
```
public static final String OID_SHA256_WITH_ECDSA
```
    Object identifier for the SHA-256 with ECDSA signature algorithm.
    
    See Also:
    
    Constant Field Values
  - OID_SHA384_WITH_ECDSA
```
public static final String OID_SHA384_WITH_ECDSA
```
    Object identifier for the SHA-384 with ECDSA signature algorithm.
    
    See Also:
    
    Constant Field Values
  - OID_SHA512_WITH_ECDSA
```
public static final String OID_SHA512_WITH_ECDSA
```
    Object identifier for the SHA-512 with ECDSA signature algorithm.
    
    See Also:
    
    Constant Field Values
  - OID_MD2_WITH_RSA
```
public static final String OID_MD2_WITH_RSA
```
    Object identifier for the MD2 with RSA signature algorithm.
    
    See Also:
    
    Constant Field Values
  - OID_MD4_WITH_RSA
```
public static final String OID_MD4_WITH_RSA
```
    Object identifier for the MD4 with RSA signature algorithm.
    
    See Also:
    
    Constant Field Values
  - OID_MD5_WITH_RSA
```
public static final String OID_MD5_WITH_RSA
```
    Object identifier for the MD5 with RSA signature algorithm.
    
    See Also:
    
    Constant Field Values
  - OID_SHA1_WITH_RSA
```
public static final String OID_SHA1_WITH_RSA
```
    Object identifier for the SHA1 with RSA signature algorithm.
    
    See Also:
    
    Constant Field Values
  - OID_SHA256_WITH_RSA
```
public static final String OID_SHA256_WITH_RSA
```
    Object identifier for the SHA-256 with RSA signature algorithm.
    
    See Also:
    
    Constant Field Values
  - OID_SHA384_WITH_RSA
```
public static final String OID_SHA384_WITH_RSA
```
    Object identifier for the SHA-384 with RSA signature algorithm.
    
    See Also:
    
    Constant Field Values
  - OID_SHA512_WITH_RSA
```
public static final String OID_SHA512_WITH_RSA
```
    Object identifier for the SHA-512 with RSA signature algorithm.
    
    See Also:
    
    Constant Field Values
  - OID_EXTENSION_REQUEST
```
public static final String OID_EXTENSION_REQUEST
```
    Object identifier for the PKCS #9 extensionRequest attribute.
    
    Since:
    
    1.2.0
    
    See Also:
    
    Constant Field Values
  - OID_MD2
```
public static final String OID_MD2
```
    Object identifier for the MD2 hash algorithm.
    
    See Also:
    
    Constant Field Values
  - OID_MD5
```
public static final String OID_MD5
```
    Object identifier for the MD5 hash algorithm.
    
    See Also:
    
    Constant Field Values
  - OID_SHA1
```
public static final String OID_SHA1
```
    Object identifier for the SHA1 hash algorithm.
    
    See Also:
    
    Constant Field Values
  - OID_RSA
```
public static final String OID_RSA
```
    Algorithm ID for RSA keys used for any purpose.
    
    See Also:
    
    Constant Field Values
  - OID_DSA
```
public static final String OID_DSA
```
    Algorithm ID for DSA keys used for any purpose.
    
    See Also:
    
    Constant Field Values
  - OID_EC
```
public static final String OID_EC
```
    Algorithm ID for EC keys used for any purpose.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - ASN1
```
public ASN1()
```
- Method Detail
  - formatAsn1
```
public static String formatAsn1(ASN1Decoder decoder)
```
    Format an AS.1 string from the given decoder as a string.
    
    Parameters:
    
    decoder - the ASN.1 decoder
    
    Returns:
    
    the formatted string
  - formatAsn1
```
public static void formatAsn1(ASN1Decoder decoder,
                              StringBuilder builder)
```
    Format an ASN.1 string from the given decoder as a string.
    
    Parameters:
    
    decoder - the ASN.1 decoder
    
    builder - the target string builder
  - keyAlgorithmFromOid
```
public static String keyAlgorithmFromOid(String oid)
```
    Resolves a key algorithm based on a given oid.
    
    Parameters:
    
    oid - an ASN.1 object identifier or OID (not null)
    
    Returns:
    
    the string representing the key algorithm or null if no algorithm could be resolved for the given OID
  - oidFromSignatureAlgorithm
```
public static String oidFromSignatureAlgorithm(String algorithmName)
```
  - signatureAlgorithmFromOid
```
public static String signatureAlgorithmFromOid(String oid)
```
  - validatePrintableByte
```
public static void validatePrintableByte(int b)
                                  throws ASN1Exception
```
    Throws:
    
    ASN1Exception

Class ASN1

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

BOOLEAN_TYPE

INTEGER_TYPE

BIT_STRING_TYPE

OCTET_STRING_TYPE

NULL_TYPE

OBJECT_IDENTIFIER_TYPE

UTF8_STRING_TYPE

PRINTABLE_STRING_TYPE

IA5_STRING_TYPE

GENERALIZED_TIME_TYPE

UNIVERSAL_STRING_TYPE

BMP_STRING_TYPE

SEQUENCE_TYPE

SET_TYPE

CONSTRUCTED_MASK

APPLICATION_SPECIFIC_MASK

CONTEXT_SPECIFIC_MASK

CLASS_MASK

TAG_NUMBER_MASK

OID_SHA1_WITH_DSA

OID_SHA256_WITH_DSA

OID_SHA1_WITH_ECDSA

OID_SHA224_WITH_ECDSA

OID_SHA256_WITH_ECDSA

OID_SHA384_WITH_ECDSA

OID_SHA512_WITH_ECDSA

OID_MD2_WITH_RSA

OID_MD4_WITH_RSA

OID_MD5_WITH_RSA

OID_SHA1_WITH_RSA

OID_SHA256_WITH_RSA

OID_SHA384_WITH_RSA

OID_SHA512_WITH_RSA

OID_EXTENSION_REQUEST

OID_MD2

OID_MD5

OID_SHA1

OID_RSA

OID_DSA

OID_EC

Constructor Detail

ASN1

Method Detail

formatAsn1

formatAsn1

keyAlgorithmFromOid

oidFromSignatureAlgorithm

signatureAlgorithmFromOid

validatePrintableByte