Documentation Contents

Description of Figure 1a Provider searching and Figure 1b Specific provider requested

Link to figures in Java Cryptography Architecture (JCA) Reference Guide

Link to figures in How to Implement a Provider

Figure 1a Provider searching

This image consists of five cylinders that represent the following:

• Application
• Provider Framework
• ProviderA: Message digest implementations SHA384 and SHA512
• ProviderB: Message digest implementations SHA256 and SHA384
• ProviderC: Message digest implementations SHA256 and SHA512

An arrow representing a call to MessageDigest.getInstance("SHA-256") starts from the Application cylinder and passes through the following cylinders in the indicated order:

1. Provider Framework
2. ProviderA
3. ProviderB
4. Provider Framework

The arrow ends at the Application cylinder. The call to MessageDigest.getInstance("SHA-256") has returned a SHA-256 message digest implementation from ProviderB.

Figure 1b Specific provider requested

This image consists of five cylinders that represent the following:

• Application
• Provider Framework
• ProviderA: Message digest implementations SHA384 and SHA512
• ProviderB: Message digest implementations SHA256 and SHA384
• ProviderC: Message digest implementations SHA256 and SHA512

An arrow representing a call to MessageDigest.getInstance("SHA-256", "ProviderC") starts from the Application cylinder and passes through the following cylinders in the indicated order:

1. Provider Framework
2. ProviderC
3. Provider Framework

The arrow ends at the Application cylinder. The call to MessageDigest.getInstance("SHA-256", "ProviderC") has returned a SHA-256 message digest implementation from ProviderC.

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