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Appendix A – Views and Functions ReferenceThis function will return the decrypted value as a varbinary value, whichwill require the use of the CONVERT function to present the decrypted value asreadable text.NOTE:To use symmetric keys in the encryption and decryption process they mustfirst be opened. Once the key is opened, using the OPEN SYMMETRIC KEYcommand, it remains open until it is explicitly closed, using the CLOSESYMMETRIC KEY command, or the session is terminated.USE HomeLending;GOOPEN SYMMETRIC KEY MySymKeyDECRYPT BY PASSWORD = N'MyStr0ngP@ssword2009';GOSELECTConvert(nvarchar(max),DecryptByKey(Identification_Value))FROMdbo.Borrower_IdentificationWHEREBorrower_ID = 1;GOCLOSE SYMMETRIC KEY MySymKey;GOListing A-16: Syntax of DecryptByKey.DecryptByPassphraseThis function is used to decrypt data that has been encrypted with a key that isgenerated from a passphrase. The user performing decryption will require theknowledge of the passphrase that was used during the encryption process.This function will return the decrypted value as a varbinary value, whichwill require the use of the CONVERT function to present the decrypted value asreadable text.USE HomeLending;GO215
Appendix A – Views and Functions ReferenceSELECTConvert(nvarchar(max),DecryptByPassphrase('The Crow Flies At Midnight.',Identification_Value))FROMdbo.Borrower_IdentificationWHEREBorrower_ID = 1;GOListing A-17: Syntax of DecryptByPassphrase.EncryptByAsymKeyThis function is used to encrypt data with an asymmetric key. No specificpermissions need to be granted to a user in order to use this function.USE HomeLending;GOUPDATE dbo.Borrower_IdentificationSET Identification_Value =EncryptByAsymKey(AsymKey_ID('MyASymKey'),Identification_Value)WHEREBorrower_ID = 1;GOListing A-18: Syntax of EncryptByAsymKey.EncryptByCertThis function is used to encrypt data with a certificate. No specific permissionsneed to be granted to a user in order to use this function.USE HomeLending;GOUPDATE dbo.Borrower_IdentificationSET Identification_Value =EncryptByCert(Cert_ID('MySelfSignedCert'),Identification_Value216
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High Performance SQL ServerProtecti
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Table of ContentsAbout the Author .
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Protection via Normalization ......
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Views and Stored Procedures .......
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Numeric Variance ..................
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Key_ID ............................
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ACKNOWLEDGEMENTSBooks are not writt
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IntroductionIn all cases, the conse
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Introduction"lost key" displaced by
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CHAPTER 1: UNDERSTANDINGSENSITIVE D
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1 - Understanding Sensitive DataSen
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1 - Understanding Sensitive Datatyp
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1 - Understanding Sensitive DataFor
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1 - Understanding Sensitive DataAcc
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1 - Understanding Sensitive DataThi
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1 - Understanding Sensitive Datarep
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1 - Understanding Sensitive DataThe
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1 - Understanding Sensitive Datathe
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CHAPTER 2: DATACLASSIFICATION AND R
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2 - Data Classification and Rolespr
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2 - Data Classification and RolesDe
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2 - Data Classification and RolesCr
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2 - Data Classification and RolesLi
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2 - Data Classification and Roles--
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2 - Data Classification and RolesSe
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2 - Data Classification and RolesWi
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3 - Schema Architecture StrategiesF
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3 - Schema Architecture Strategiesp
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3 - Schema Architecture StrategiesN
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3 - Schema Architecture StrategiesA
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3 - Schema Architecture StrategiesD
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3 - Schema Architecture StrategiesU
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3 - Schema Architecture StrategiesU
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3 - Schema Architecture StrategiesF
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3 - Schema Architecture Strategies
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3 - Schema Architecture StrategiesS
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4 - Encryption Basics for SQL Serve
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5 - Cell-Level Encryptionthe encryp
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5 - Cell-Level EncryptionSearching
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5 - Cell-Level EncryptionPreparing
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5 - Cell-Level EncryptionUSE HomeLe
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5 - Cell-Level Encryptionself-signe
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5 - Cell-Level Encryptionwithin SQL
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5 - Cell-Level EncryptionTesting th
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5 - Cell-Level Encryptioncolumn. Cu
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5 - Cell-Level EncryptionFROMdbo.Bo
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5 - Cell-Level Encryptioncolumn con
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5 - Cell-Level Encryptionthat is a
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5 - Cell-Level EncryptionBEGIN TRY-
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5 - Cell-Level Encryption);)@Identi
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5 - Cell-Level Encryption• The sc
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6 - Transparent Data EncryptionHow
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6 - Transparent Data EncryptionCons
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6 - Transparent Data Encryptionand
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6 - Transparent Data EncryptionNoti
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6 - Transparent Data EncryptionUSE
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6 - Transparent Data EncryptionGONO
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6 - Transparent Data Encryptionand
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6 - Transparent Data EncryptionUSE
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CHAPTER 7: ONE-WAYENCRYPTIONAs a ch
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7 - One-Way EncryptionBenefits and
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7 - One-Way Encryption• A match i
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7 - One-Way EncryptionPlain TextEnd
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7 - One-Way EncryptionReducing Vuln
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7 - One-Way EncryptionUse HomeLendi
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7 - One-Way EncryptionEXEC sp_addex
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7 - One-Way EncryptionLater in this
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7 - One-Way EncryptionUSE HomeLendi
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Page 172 and 173: CHAPTER 8: OBFUSCATIONHalloween is
Page 174 and 175: 8 - Obfuscation• Artificial Data
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Page 178 and 179: 8 - ObfuscationRepeating Character
Page 180 and 181: 8 - ObfuscationASSELECTdbo.Characte
Page 182 and 183: 8 - ObfuscationGO181
Page 184 and 185: 8 - ObfuscationSET Identification_V
Page 186 and 187: 8 - ObfuscationThe Purpose_Type_ID
Page 188 and 189: 8 - ObfuscationArtificial Data Gene
Page 190 and 191: 9 - Honeycombing a DatabaseUse Home
Page 192 and 193: 9 - Honeycombing a DatabaseUSE Mast
Page 194 and 195: 9 - Honeycombing a DatabaseLog Item
Page 196 and 197: 9 - Honeycombing a Databaseto 127.
Page 198 and 199: 9 - Honeycombing a Databaseavailabl
Page 200 and 201: 9 - Honeycombing a DatabaseAvoid SQ
Page 202 and 203: 10 - Layering SolutionsDesign for P
Page 204 and 205: 10 - Layering SolutionsObfuscationU
Page 206 and 207: 10 - Layering SolutionsThe completi
Page 208 and 209: APPENDIX A: VIEWS ANDFUNCTIONS REFE
Page 210 and 211: Appendix A - Views and Functions Re
Page 228 and 229: APPENDIX B: THE HOMELENDINGDATABASE
Page 230 and 231: Appendix B - The HomeLending databa
Page 232: About Red GateYou know those annoyi
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