Start adding PDA

urani-trade · Mar 27, 2024 · b8b1f57 · b8b1f57
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diff --git a/README.md b/README.md
@@ -10,11 +10,11 @@
 
 <br>
 
-* **[1. Introduction to the Solana Blockchain](chapters/01_intro.md)**
-* **[2. Setup a Developing Environment](chapters/02_dev_env.md)**
-* **[3. Mastering the Anchor Framework](chapters/03_anchor.md)**
-* **[4. Mastering Solana Frontend](chapters/04_frontend.md)**
-* **[5. In-Depth Solana Programs, PDA, CPI](chapters/05_programs_in_depth.md)**
+* **[1. Solana Blockchain Overview](chapters/01_intro.md)**
+* **[2. Setup a Dev Environment](chapters/02_dev_env.md)**
+* **[3. Mastering Anchor and CPI](chapters/03_anchor.md)**
+* **[4. Program Derived Addresses](chapters/04_program_derived_addresses.md)**
+* **[5. Mastering Solana Frontend](chapters/05_frontend.md)**
 * **[6. Mastering Transfer Hooks](chapters/06_transfer_hooks.md)**
 * **[7. Additional Resources](chapters/07_additional_resources.md)**
 
@@ -33,13 +33,7 @@
 
 * **[Demo 1: Hello World](demos/01_hello_world)**
 * **[Demo 2. Anchor and CPI](demos/02_anchor_cpi)**
-* **[Demo 3. Anchor and PDA](demos/03_anchor_pda)**
-* **[Demo 4. Solidity vs. Solana](demos/04_sol_vs_sol)**
-* **[Demo 5. Rust, Structs, Custom Derive Macros](demos/05_rust)**
-* **[Demo 6. Block Variables, Sysvars](demos/06_blocks)**
-* **[Demo 7. Logs, Events, Transactions](demos/07_logs_events_txs)**
-* **[Demo 8. Transaction Fees and Compute Units](demos/08_transactions)**
-* **[Demo 9. Accounts and Storage](demos/09_accounts_and_storage)**
+* **[Demo 3. Program Derived Addresses](demos/03_pda)**
 
 
 <br>
@@ -48,29 +42,6 @@
 
 <br>
 
-* **[10. Token Transfer and Payment](demos/10_payment)**
-* **[11. Authorizing Wallets to Accounts](demos/11_wallets_to_account)**
-* **[12. PDA and Keypar Accounts](demos/12_pda)**
-* **[13. Multicall and Batching Transactions](demos/13_multicall)**
-* **[14. Owner and Authority](demos/14_ownership)**
-* **[15. Delegating Accounts](demos/15_delegating)**
-
-
-<br>
-
-#### Expert
-
-<br>
-
-* **[16. Build a Solana Token](demos/16_token)**
-* **[17. Security](demos/17_security)**
-* **[18. Solana Pay](demos/18_solana_pay)**
-* **[19. Implement a NFT Marketplace](demos/19_nft_marketplace)**
-* **[20. Implement Arbitrage](demos/20_arbitrage)**
-
-
-
-
 
 
 

diff --git a/chapters/03_anchor.md b/chapters/03_anchor.md
@@ -134,7 +134,9 @@ pub account: AccountType
 
 <br>
 
-#### Errors
+----
+
+### Errors
 
 <br>
 
@@ -166,6 +168,20 @@ pub enum MyError {
 
 <br>
 
+---
+
+### Privilege Extension
+
+<br>
+
+* CPIs extend the privileges of the caller to the callee. 
+
+* Privilege extension can be dangerous. If a CPI is made by a malicious program, the program has the same privileges as the caller.
+
+* Anchor protects your code from CPIs to malicious programs by the `Program<'info, T>` type check being given to the account is the expected program `T`.
+
+
+<br>
 
 ----
 
@@ -199,22 +215,12 @@ anchor init <workspace-name>
 
 ---
 
-### Demo
+### Demos
 
 <br>
 
-#### CPI
-
 * Learn how cross-program instructions work on Anchor through [demo 2](https://github.com/urani-labs/solana-dev-onboarding-rs/tree/main/demos/02_anchor_cpi).
 
-
-<br>
-
-#### PDA
-
-* Learn how program-derived-addresses work on Anchor through [demo 3](https://github.com/urani-labs/solana-dev-onboarding-rs/tree/main/demos/03_anchor_pda).
-
-
 <br>
 
 ---

diff --git a/chapters/05_programs_in_depth.md → chapters/04_program_derived_addresses.md b/chapters/05_programs_in_depth.md → chapters/04_program_derived_addresses.md
diff --git a/chapters/04_frontend.md → chapters/05_frontend.md b/chapters/04_frontend.md → chapters/05_frontend.md
diff --git a/demos/04_sol_vs_sol/README.md b/demos/04_sol_vs_sol/README.md
diff --git a/demos/05_rust/README.md b/demos/05_rust/README.md
diff --git a/demos/06_blocks/README.md b/demos/06_blocks/README.md
diff --git a/demos/07_logs_events_txs/README.md b/demos/07_logs_events_txs/README.md
diff --git a/demos/08_transactions/README.md b/demos/08_transactions/README.md
diff --git a/demos/09_accounts_and_storage/README.md b/demos/09_accounts_and_storage/README.md
diff --git a/demos/10_payment/README.md b/demos/10_payment/README.md
diff --git a/demos/11_wallets_to_account/README.md b/demos/11_wallets_to_account/README.md
diff --git a/demos/12_pda/README.md b/demos/12_pda/README.md
diff --git a/demos/13_multicall/README.md b/demos/13_multicall/README.md
diff --git a/demos/14_ownership/README.md b/demos/14_ownership/README.md
diff --git a/demos/15_delegating/README.md b/demos/15_delegating/README.md
diff --git a/demos/16_token/README.md b/demos/16_token/README.md
diff --git a/demos/17_security/README.md b/demos/17_security/README.md
diff --git a/demos/18_solana_pay/README.md b/demos/18_solana_pay/README.md
diff --git a/demos/19_nft_marketplace/README.md b/demos/19_nft_marketplace/README.md
diff --git a/demos/20_arbitrage/README.md b/demos/20_arbitrage/README.md