First Keystone (FKYS) 10-K 2017 FY Annual report

EXHIBIT 32.2

FIRST KEYSTONE CORPORATION

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K of First Keystone Corporation (the “Corporation”) for the period ended December 31, 2017, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Diane C.A. Rosler, Chief Financial Officer, certify, pursuant to and for the purposes of 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Corporation as of and for the period covered by the Report.

/s/ Diane C.A. Rosler

Diane C.A. Rosler

Senior Vice President and Chief Financial Officer

(Principal Financial Officer)

March 16, 2018

A signed original of this written statement required by Section 906 has been provided to the Corporation and will be retained by the Corporation and furnished to the Securities and Exchange Commission or its staff upon request.