Anthony Stirling 371d816ce7 Validate certificate inputs for cert signing (#5191) ... ## Summary - validate required certificate inputs before loading keystores to prevent null dereferences - surface clear errors for missing PEM, PKCS12/PFX, and JKS uploads during PDF signing - add a unit test covering the missing PKCS12/PFX keystore scenario ## Testing - ./gradlew :stirling-pdf:test --tests stirling.software.SPDF.controller.api.security.CertSignControllerTest ------ [Codex Task](https://chatgpt.com/codex/tasks/task_b_6934c8803d648328bf76b72a4f689c60)		2025-12-13 17:42:12 +00:00
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src	Validate certificate inputs for cert signing (#5191)	2025-12-13 17:42:12 +00:00
.gitignore	feat(security): add PFX alias for PKCS12; accept .crt/.cer/.der certs & .key keys; add certificate-signing tests (#4297)	2025-09-04 15:30:32 +01:00
build.gradle	Builds custom Jar (#5029)	2025-11-26 17:21:42 +00:00