JwtSecurityTokenHandler.ValidateSignature Method (JwtSecurityToken, TokenValidationParameters)

Validates that the signature is valid.

Namespace:  System.IdentityModel.Tokens
Assembly:  System.IdentityModel.Tokens.Jwt (in System.IdentityModel.Tokens.Jwt.dll)

Syntax

'Declaration
Protected Overridable Sub ValidateSignature ( _
    jwt As JwtSecurityToken, _
    validationParameters As TokenValidationParameters _
)

protected virtual void ValidateSignature(
    JwtSecurityToken jwt,
    TokenValidationParameters validationParameters
)

protected:
virtual void ValidateSignature(
    JwtSecurityToken^ jwt, 
    TokenValidationParameters^ validationParameters
)

abstract ValidateSignature : 
        jwt:JwtSecurityToken * 
        validationParameters:TokenValidationParameters -> unit  
override ValidateSignature : 
        jwt:JwtSecurityToken * 
        validationParameters:TokenValidationParameters -> unit

protected function ValidateSignature(
    jwt : JwtSecurityToken, 
    validationParameters : TokenValidationParameters
)

Parameters

• jwt
  Type: System.IdentityModel.Tokens.JwtSecurityToken

  JwtSecurityToken to validate.

• validationParameters
  Type: System.IdentityModel.Tokens.TokenValidationParameters

  contains SecurityToken(s) used to check signature.

Exceptions

Exception	Condition
ArgumentNullException	'jwt' is null. -or- 'validationParameters' is null.
InvalidOperationException	SigningToken and SigningTokens are both null.
SecurityTokenValidationException	signature is not valid.

Remarks

If validation is successful, SigningToken and SigningKey will be set to the SecurityToken and SecurityKey the validated the signature.

.NET Framework Security

• Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

See Also

Reference

JwtSecurityTokenHandler Class

ValidateSignature Overload

System.IdentityModel.Tokens Namespace