TY  - RPRT
TI  - Recommendation for Key Derivation Using Pseudorandom Functions 
AU  - Chen, Lily
PY  - 2024
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST SP 800-108r1-upd1
DO  - 10.6028/NIST.SP.800-108r1-upd1
ER  -